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Finding the Fourth Proportional to 542,497.29, 813,790.30 and 272,486.59

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Solution

The fourth proportional to 542,497.29, 813,790.30 and 272,486.59 is: 408,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,497.29 : 813,790.30 = 272,486.59 : x
  2. Step 2: Convert to fraction form
    542,497.29/813,790.30 = 272,486.59/x
  3. Step 3: Cross multiply
    542,497.29x = 813,790.30 × 272,486.59
  4. Step 4: Simplify right side
    542,497.29x = 221,746,938,390.69
  5. Step 5: Solve for x
    x = 221,746,938,390.69/542,497.29
  6. Step 6: Final answer
    x = 408,752.16

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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.