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Finding the Fourth Proportional to 524,984.80, 787,477.20 and 324,655.60

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Solution

The fourth proportional to 524,984.80, 787,477.20 and 324,655.60 is: 486,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,984.80 : 787,477.20 = 324,655.60 : x
  2. Step 2: Convert to fraction form
    524,984.80/787,477.20 = 324,655.60/x
  3. Step 3: Cross multiply
    524,984.80x = 787,477.20 × 324,655.60
  4. Step 4: Simplify right side
    524,984.80x = 255,658,882,852.32
  5. Step 5: Solve for x
    x = 255,658,882,852.32/524,984.80
  6. Step 6: Final answer
    x = 486,983.40

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Half scale
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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.