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Finding the Fourth Proportional to 450,791.46, 676,864.55 and 429,124.37

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Solution

The fourth proportional to 450,791.46, 676,864.55 and 429,124.37 is: 644,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,791.46 : 676,864.55 = 429,124.37 : x
  2. Step 2: Convert to fraction form
    450,791.46/676,864.55 = 429,124.37/x
  3. Step 3: Cross multiply
    450,791.46x = 676,864.55 × 429,124.37
  4. Step 4: Simplify right side
    450,791.46x = 290,459,071,282.57
  5. Step 5: Solve for x
    x = 290,459,071,282.57/450,791.46
  6. Step 6: Final answer
    x = 644,331.35

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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.