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Finding the Fourth Proportional to 722,377.72, 994,600.38 and 636,283

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Solution

The fourth proportional to 722,377.72, 994,600.38 and 636,283 is: 876,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,377.72 : 994,600.38 = 636,283 : x
  2. Step 2: Convert to fraction form
    722,377.72/994,600.38 = 636,283/x
  3. Step 3: Cross multiply
    722,377.72x = 994,600.38 × 636,283
  4. Step 4: Simplify right side
    722,377.72x = 632,847,313,587.54
  5. Step 5: Solve for x
    x = 632,847,313,587.54/722,377.72
  6. Step 6: Final answer
    x = 876,061.51

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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.