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Finding the Fourth Proportional to 557,633.52, 769,545.72 and 303,001.20

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Solution

The fourth proportional to 557,633.52, 769,545.72 and 303,001.20 is: 418,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,633.52 : 769,545.72 = 303,001.20 : x
  2. Step 2: Convert to fraction form
    557,633.52/769,545.72 = 303,001.20/x
  3. Step 3: Cross multiply
    557,633.52x = 769,545.72 × 303,001.20
  4. Step 4: Simplify right side
    557,633.52x = 233,173,276,614.86
  5. Step 5: Solve for x
    x = 233,173,276,614.86/557,633.52
  6. Step 6: Final answer
    x = 418,147.88

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1.5x scale

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.