Home / 747,419.95-1,031,439.24-407,888.20

Finding the Fourth Proportional to 747,419.95, 1,031,439.24 and 407,888.20

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Solution

The fourth proportional to 747,419.95, 1,031,439.24 and 407,888.20 is: 562,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,419.95 : 1,031,439.24 = 407,888.20 : x
  2. Step 2: Convert to fraction form
    747,419.95/1,031,439.24 = 407,888.20/x
  3. Step 3: Cross multiply
    747,419.95x = 1,031,439.24 × 407,888.20
  4. Step 4: Simplify right side
    747,419.95x = 420,711,895,012.97
  5. Step 5: Solve for x
    x = 420,711,895,012.97/747,419.95
  6. Step 6: Final answer
    x = 562,885.56

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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.