Home / 738,455.40-1,107,683.10-472,516.20

Finding the Fourth Proportional to 738,455.40, 1,107,683.10 and 472,516.20

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Solution

The fourth proportional to 738,455.40, 1,107,683.10 and 472,516.20 is: 708,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,455.40 : 1,107,683.10 = 472,516.20 : x
  2. Step 2: Convert to fraction form
    738,455.40/1,107,683.10 = 472,516.20/x
  3. Step 3: Cross multiply
    738,455.40x = 1,107,683.10 × 472,516.20
  4. Step 4: Simplify right side
    738,455.40x = 523,398,209,216.22
  5. Step 5: Solve for x
    x = 523,398,209,216.22/738,455.40
  6. Step 6: Final answer
    x = 708,774.30

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Double scale
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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.