Home / 981,514.56-1,472,286.72-646,699.68

Finding the Fourth Proportional to 981,514.56, 1,472,286.72 and 646,699.68

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Solution

The fourth proportional to 981,514.56, 1,472,286.72 and 646,699.68 is: 970,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,514.56 : 1,472,286.72 = 646,699.68 : x
  2. Step 2: Convert to fraction form
    981,514.56/1,472,286.72 = 646,699.68/x
  3. Step 3: Cross multiply
    981,514.56x = 1,472,286.72 × 646,699.68
  4. Step 4: Simplify right side
    981,514.56x = 952,127,350,692.25
  5. Step 5: Solve for x
    x = 952,127,350,692.25/981,514.56
  6. Step 6: Final answer
    x = 970,059.32

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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.