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Finding the Fourth Proportional to 587,278.90, 880,918.35 and 489,301.30

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Solution

The fourth proportional to 587,278.90, 880,918.35 and 489,301.30 is: 733,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,278.90 : 880,918.35 = 489,301.30 : x
  2. Step 2: Convert to fraction form
    587,278.90/880,918.35 = 489,301.30/x
  3. Step 3: Cross multiply
    587,278.90x = 880,918.35 × 489,301.30
  4. Step 4: Simplify right side
    587,278.90x = 431,034,493,848.86
  5. Step 5: Solve for x
    x = 431,034,493,848.86/587,278.90
  6. Step 6: Final answer
    x = 733,951.95

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Similar ratio
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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.