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Finding the Fourth Proportional to 424,502.06, 636,366.47 and 272,740.39

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Solution

The fourth proportional to 424,502.06, 636,366.47 and 272,740.39 is: 408,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,502.06 : 636,366.47 = 272,740.39 : x
  2. Step 2: Convert to fraction form
    424,502.06/636,366.47 = 272,740.39/x
  3. Step 3: Cross multiply
    424,502.06x = 636,366.47 × 272,740.39
  4. Step 4: Simplify right side
    424,502.06x = 173,562,836,256.11
  5. Step 5: Solve for x
    x = 173,562,836,256.11/424,502.06
  6. Step 6: Final answer
    x = 408,862.18

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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.