Home / 981,714.80-1,471,708.20-665,145.20

Finding the Fourth Proportional to 981,714.80, 1,471,708.20 and 665,145.20

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Solution

The fourth proportional to 981,714.80, 1,471,708.20 and 665,145.20 is: 997,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,714.80 : 1,471,708.20 = 665,145.20 : x
  2. Step 2: Convert to fraction form
    981,714.80/1,471,708.20 = 665,145.20/x
  3. Step 3: Cross multiply
    981,714.80x = 1,471,708.20 × 665,145.20
  4. Step 4: Simplify right side
    981,714.80x = 978,899,645,030.64
  5. Step 5: Solve for x
    x = 978,899,645,030.64/981,714.80
  6. Step 6: Final answer
    x = 997,132.41

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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.