Home / 485,737.64-727,966.76-272,501.52

Finding the Fourth Proportional to 485,737.64, 727,966.76 and 272,501.52

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Solution

The fourth proportional to 485,737.64, 727,966.76 and 272,501.52 is: 408,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,737.64 : 727,966.76 = 272,501.52 : x
  2. Step 2: Convert to fraction form
    485,737.64/727,966.76 = 272,501.52/x
  3. Step 3: Cross multiply
    485,737.64x = 727,966.76 × 272,501.52
  4. Step 4: Simplify right side
    485,737.64x = 198,372,048,609.48
  5. Step 5: Solve for x
    x = 198,372,048,609.48/485,737.64
  6. Step 6: Final answer
    x = 408,393.40

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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.