Home / 981,265.42-1,471,896.96-307,399.21

Finding the Fourth Proportional to 981,265.42, 1,471,896.96 and 307,399.21

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Solution

The fourth proportional to 981,265.42, 1,471,896.96 and 307,399.21 is: 461,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,265.42 : 1,471,896.96 = 307,399.21 : x
  2. Step 2: Convert to fraction form
    981,265.42/1,471,896.96 = 307,399.21/x
  3. Step 3: Cross multiply
    981,265.42x = 1,471,896.96 × 307,399.21
  4. Step 4: Simplify right side
    981,265.42x = 452,459,955,345.92
  5. Step 5: Solve for x
    x = 452,459,955,345.92/981,265.42
  6. Step 6: Final answer
    x = 461,098.44

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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.