Home / 981,579.75-1,472,388.12-307,646.16

Finding the Fourth Proportional to 981,579.75, 1,472,388.12 and 307,646.16

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Solution

The fourth proportional to 981,579.75, 1,472,388.12 and 307,646.16 is: 461,475.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,579.75 : 1,472,388.12 = 307,646.16 : x
  2. Step 2: Convert to fraction form
    981,579.75/1,472,388.12 = 307,646.16/x
  3. Step 3: Cross multiply
    981,579.75x = 1,472,388.12 × 307,646.16
  4. Step 4: Simplify right side
    981,579.75x = 452,974,551,147.62
  5. Step 5: Solve for x
    x = 452,974,551,147.62/981,579.75
  6. Step 6: Final answer
    x = 461,475.04

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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.