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Finding the Fourth Proportional to 981,510, 1,472,610.60 and 483,223.92

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Solution

The fourth proportional to 981,510, 1,472,610.60 and 483,223.92 is: 725,006.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,510 : 1,472,610.60 = 483,223.92 : x
  2. Step 2: Convert to fraction form
    981,510/1,472,610.60 = 483,223.92/x
  3. Step 3: Cross multiply
    981,510x = 1,472,610.60 × 483,223.92
  4. Step 4: Simplify right side
    981,510x = 711,600,666,765.55
  5. Step 5: Solve for x
    x = 711,600,666,765.55/981,510
  6. Step 6: Final answer
    x = 725,006.03

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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.