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Finding the Fourth Proportional to 557,501.52, 769,286.81 and 328,008.38

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Solution

The fourth proportional to 557,501.52, 769,286.81 and 328,008.38 is: 452,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,501.52 : 769,286.81 = 328,008.38 : x
  2. Step 2: Convert to fraction form
    557,501.52/769,286.81 = 328,008.38/x
  3. Step 3: Cross multiply
    557,501.52x = 769,286.81 × 328,008.38
  4. Step 4: Simplify right side
    557,501.52x = 252,332,514,816.99
  5. Step 5: Solve for x
    x = 252,332,514,816.99/557,501.52
  6. Step 6: Final answer
    x = 452,613.14

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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.