Home / 981,616.96-1,472,382.60-307,682.88

Finding the Fourth Proportional to 981,616.96, 1,472,382.60 and 307,682.88

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Solution

The fourth proportional to 981,616.96, 1,472,382.60 and 307,682.88 is: 461,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,616.96 : 1,472,382.60 = 307,682.88 : x
  2. Step 2: Convert to fraction form
    981,616.96/1,472,382.60 = 307,682.88/x
  3. Step 3: Cross multiply
    981,616.96x = 1,472,382.60 × 307,682.88
  4. Step 4: Simplify right side
    981,616.96x = 453,026,918,829.89
  5. Step 5: Solve for x
    x = 453,026,918,829.89/981,616.96
  6. Step 6: Final answer
    x = 461,510.89

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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.