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Finding the Fourth Proportional to 489,221.30, 733,831.96 and 371,123.30

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Solution

The fourth proportional to 489,221.30, 733,831.96 and 371,123.30 is: 556,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,221.30 : 733,831.96 = 371,123.30 : x
  2. Step 2: Convert to fraction form
    489,221.30/733,831.96 = 371,123.30/x
  3. Step 3: Cross multiply
    489,221.30x = 733,831.96 × 371,123.30
  4. Step 4: Simplify right side
    489,221.30x = 272,342,138,640.67
  5. Step 5: Solve for x
    x = 272,342,138,640.67/489,221.30
  6. Step 6: Final answer
    x = 556,684.96

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Similar ratio
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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.