Home / 526,727.28-726,756.78-319,989.66

Finding the Fourth Proportional to 526,727.28, 726,756.78 and 319,989.66

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Solution

The fourth proportional to 526,727.28, 726,756.78 and 319,989.66 is: 441,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,727.28 : 726,756.78 = 319,989.66 : x
  2. Step 2: Convert to fraction form
    526,727.28/726,756.78 = 319,989.66/x
  3. Step 3: Cross multiply
    526,727.28x = 726,756.78 × 319,989.66
  4. Step 4: Simplify right side
    526,727.28x = 232,554,654,934.90
  5. Step 5: Solve for x
    x = 232,554,654,934.90/526,727.28
  6. Step 6: Final answer
    x = 441,508.66

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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.