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Finding the Fourth Proportional to 439,068.62, 654,893.06 and 425,778.95

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Solution

The fourth proportional to 439,068.62, 654,893.06 and 425,778.95 is: 635,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,068.62 : 654,893.06 = 425,778.95 : x
  2. Step 2: Convert to fraction form
    439,068.62/654,893.06 = 425,778.95/x
  3. Step 3: Cross multiply
    439,068.62x = 654,893.06 × 425,778.95
  4. Step 4: Simplify right side
    439,068.62x = 278,839,678,957.43
  5. Step 5: Solve for x
    x = 278,839,678,957.43/439,068.62
  6. Step 6: Final answer
    x = 635,070.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.