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Finding the Fourth Proportional to 489,195.90, 733,793.85 and 440,207.10

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Solution

The fourth proportional to 489,195.90, 733,793.85 and 440,207.10 is: 660,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,195.90 : 733,793.85 = 440,207.10 : x
  2. Step 2: Convert to fraction form
    489,195.90/733,793.85 = 440,207.10/x
  3. Step 3: Cross multiply
    489,195.90x = 733,793.85 × 440,207.10
  4. Step 4: Simplify right side
    489,195.90x = 323,021,262,706.34
  5. Step 5: Solve for x
    x = 323,021,262,706.34/489,195.90
  6. Step 6: Final answer
    x = 660,310.65

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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.