Home / 981,356.80-1,471,257.60-538,124.80

Finding the Fourth Proportional to 981,356.80, 1,471,257.60 and 538,124.80

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Solution

The fourth proportional to 981,356.80, 1,471,257.60 and 538,124.80 is: 806,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,356.80 : 1,471,257.60 = 538,124.80 : x
  2. Step 2: Convert to fraction form
    981,356.80/1,471,257.60 = 538,124.80/x
  3. Step 3: Cross multiply
    981,356.80x = 1,471,257.60 × 538,124.80
  4. Step 4: Simplify right side
    981,356.80x = 791,720,201,748.48
  5. Step 5: Solve for x
    x = 791,720,201,748.48/981,356.80
  6. Step 6: Final answer
    x = 806,760.80

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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.