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Finding the Fourth Proportional to 522,099.40, 783,149.10 and 490,995.40

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Solution

The fourth proportional to 522,099.40, 783,149.10 and 490,995.40 is: 736,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,099.40 : 783,149.10 = 490,995.40 : x
  2. Step 2: Convert to fraction form
    522,099.40/783,149.10 = 490,995.40/x
  3. Step 3: Cross multiply
    522,099.40x = 783,149.10 × 490,995.40
  4. Step 4: Simplify right side
    522,099.40x = 384,522,605,614.14
  5. Step 5: Solve for x
    x = 384,522,605,614.14/522,099.40
  6. Step 6: Final answer
    x = 736,493.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 522,100.40, 783,150.60 and 490,996.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.