Home / 981,399.12-1,472,098.56-316,551.12

Finding the Fourth Proportional to 981,399.12, 1,472,098.56 and 316,551.12

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Solution

The fourth proportional to 981,399.12, 1,472,098.56 and 316,551.12 is: 474,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,399.12 : 1,472,098.56 = 316,551.12 : x
  2. Step 2: Convert to fraction form
    981,399.12/1,472,098.56 = 316,551.12/x
  3. Step 3: Cross multiply
    981,399.12x = 1,472,098.56 × 316,551.12
  4. Step 4: Simplify right side
    981,399.12x = 465,994,447,918.39
  5. Step 5: Solve for x
    x = 465,994,447,918.39/981,399.12
  6. Step 6: Final answer
    x = 474,826.64

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1.5x scale

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.