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Finding the Fourth Proportional to 489,473.55, 676,161.68 and 377,732.43

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Solution

The fourth proportional to 489,473.55, 676,161.68 and 377,732.43 is: 521,801.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,473.55 : 676,161.68 = 377,732.43 : x
  2. Step 2: Convert to fraction form
    489,473.55/676,161.68 = 377,732.43/x
  3. Step 3: Cross multiply
    489,473.55x = 676,161.68 × 377,732.43
  4. Step 4: Simplify right side
    489,473.55x = 255,408,192,570.62
  5. Step 5: Solve for x
    x = 255,408,192,570.62/489,473.55
  6. Step 6: Final answer
    x = 521,801.83

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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.