Home / 981,007.20-1,471,510.80-508,615.20

Finding the Fourth Proportional to 981,007.20, 1,471,510.80 and 508,615.20

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Solution

The fourth proportional to 981,007.20, 1,471,510.80 and 508,615.20 is: 762,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,007.20 : 1,471,510.80 = 508,615.20 : x
  2. Step 2: Convert to fraction form
    981,007.20/1,471,510.80 = 508,615.20/x
  3. Step 3: Cross multiply
    981,007.20x = 1,471,510.80 × 508,615.20
  4. Step 4: Simplify right side
    981,007.20x = 748,432,759,844.16
  5. Step 5: Solve for x
    x = 748,432,759,844.16/981,007.20
  6. Step 6: Final answer
    x = 762,922.80

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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.