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Finding the Fourth Proportional to 616,414.12, 850,654.61 and 344,486.55

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Solution

The fourth proportional to 616,414.12, 850,654.61 and 344,486.55 is: 475,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,414.12 : 850,654.61 = 344,486.55 : x
  2. Step 2: Convert to fraction form
    616,414.12/850,654.61 = 344,486.55/x
  3. Step 3: Cross multiply
    616,414.12x = 850,654.61 × 344,486.55
  4. Step 4: Simplify right side
    616,414.12x = 293,039,074,599.84
  5. Step 5: Solve for x
    x = 293,039,074,599.84/616,414.12
  6. Step 6: Final answer
    x = 475,393.19

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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.