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Finding the Fourth Proportional to 551,151.40, 826,727.10 and 383,189.80

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Solution

The fourth proportional to 551,151.40, 826,727.10 and 383,189.80 is: 574,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,151.40 : 826,727.10 = 383,189.80 : x
  2. Step 2: Convert to fraction form
    551,151.40/826,727.10 = 383,189.80/x
  3. Step 3: Cross multiply
    551,151.40x = 826,727.10 × 383,189.80
  4. Step 4: Simplify right side
    551,151.40x = 316,793,392,103.58
  5. Step 5: Solve for x
    x = 316,793,392,103.58/551,151.40
  6. Step 6: Final answer
    x = 574,784.70

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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.