Home / 981,612.34-1,472,375.68-307,678.26

Finding the Fourth Proportional to 981,612.34, 1,472,375.68 and 307,678.26

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Solution

The fourth proportional to 981,612.34, 1,472,375.68 and 307,678.26 is: 461,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,612.34 : 1,472,375.68 = 307,678.26 : x
  2. Step 2: Convert to fraction form
    981,612.34/1,472,375.68 = 307,678.26/x
  3. Step 3: Cross multiply
    981,612.34x = 1,472,375.68 × 307,678.26
  4. Step 4: Simplify right side
    981,612.34x = 453,017,985,750.33
  5. Step 5: Solve for x
    x = 453,017,985,750.33/981,612.34
  6. Step 6: Final answer
    x = 461,503.97

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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.