Home / 981,614.46-1,472,378.87-307,680.39

Finding the Fourth Proportional to 981,614.46, 1,472,378.87 and 307,680.39

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Solution

The fourth proportional to 981,614.46, 1,472,378.87 and 307,680.39 is: 461,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,614.46 : 1,472,378.87 = 307,680.39 : x
  2. Step 2: Convert to fraction form
    981,614.46/1,472,378.87 = 307,680.39/x
  3. Step 3: Cross multiply
    981,614.46x = 1,472,378.87 × 307,680.39
  4. Step 4: Simplify right side
    981,614.46x = 453,022,103,410.96
  5. Step 5: Solve for x
    x = 453,022,103,410.96/981,614.46
  6. Step 6: Final answer
    x = 461,507.16

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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.