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Finding the Fourth Proportional to 722,084.58, 996,491.82 and 395,411.38

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Solution

The fourth proportional to 722,084.58, 996,491.82 and 395,411.38 is: 545,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,084.58 : 996,491.82 = 395,411.38 : x
  2. Step 2: Convert to fraction form
    722,084.58/996,491.82 = 395,411.38/x
  3. Step 3: Cross multiply
    722,084.58x = 996,491.82 × 395,411.38
  4. Step 4: Simplify right side
    722,084.58x = 394,024,205,704.91
  5. Step 5: Solve for x
    x = 394,024,205,704.91/722,084.58
  6. Step 6: Final answer
    x = 545,675.97

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1.5x scale

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.