Home / 747,489.16-1,031,519.70-407,957.32

Finding the Fourth Proportional to 747,489.16, 1,031,519.70 and 407,957.32

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Solution

The fourth proportional to 747,489.16, 1,031,519.70 and 407,957.32 is: 562,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,489.16 : 1,031,519.70 = 407,957.32 : x
  2. Step 2: Convert to fraction form
    747,489.16/1,031,519.70 = 407,957.32/x
  3. Step 3: Cross multiply
    747,489.16x = 1,031,519.70 × 407,957.32
  4. Step 4: Simplify right side
    747,489.16x = 420,816,012,339.20
  5. Step 5: Solve for x
    x = 420,816,012,339.20/747,489.16
  6. Step 6: Final answer
    x = 562,972.73

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.