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Finding the Fourth Proportional to 654,119.40, 981,179.10 and 565,545.90

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Solution

The fourth proportional to 654,119.40, 981,179.10 and 565,545.90 is: 848,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,119.40 : 981,179.10 = 565,545.90 : x
  2. Step 2: Convert to fraction form
    654,119.40/981,179.10 = 565,545.90/x
  3. Step 3: Cross multiply
    654,119.40x = 981,179.10 × 565,545.90
  4. Step 4: Simplify right side
    654,119.40x = 554,901,817,170.69
  5. Step 5: Solve for x
    x = 554,901,817,170.69/654,119.40
  6. Step 6: Final answer
    x = 848,318.85

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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.