Home / 747,142.47-1,031,053.14-407,610.72

Finding the Fourth Proportional to 747,142.47, 1,031,053.14 and 407,610.72

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Solution

The fourth proportional to 747,142.47, 1,031,053.14 and 407,610.72 is: 562,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,142.47 : 1,031,053.14 = 407,610.72 : x
  2. Step 2: Convert to fraction form
    747,142.47/1,031,053.14 = 407,610.72/x
  3. Step 3: Cross multiply
    747,142.47x = 1,031,053.14 × 407,610.72
  4. Step 4: Simplify right side
    747,142.47x = 420,268,312,753.66
  5. Step 5: Solve for x
    x = 420,268,312,753.66/747,142.47
  6. Step 6: Final answer
    x = 562,500.90

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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.