Home / 981,613.71-1,472,377.73-307,679.65

Finding the Fourth Proportional to 981,613.71, 1,472,377.73 and 307,679.65

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Solution

The fourth proportional to 981,613.71, 1,472,377.73 and 307,679.65 is: 461,506.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,613.71 : 1,472,377.73 = 307,679.65 : x
  2. Step 2: Convert to fraction form
    981,613.71/1,472,377.73 = 307,679.65/x
  3. Step 3: Cross multiply
    981,613.71x = 1,472,377.73 × 307,679.65
  4. Step 4: Simplify right side
    981,613.71x = 453,020,659,414.85
  5. Step 5: Solve for x
    x = 453,020,659,414.85/981,613.71
  6. Step 6: Final answer
    x = 461,506.04

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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.