Home / 981,448.25-1,472,242.37-261,785.93

Finding the Fourth Proportional to 981,448.25, 1,472,242.37 and 261,785.93

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Solution

The fourth proportional to 981,448.25, 1,472,242.37 and 261,785.93 is: 392,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,448.25 : 1,472,242.37 = 261,785.93 : x
  2. Step 2: Convert to fraction form
    981,448.25/1,472,242.37 = 261,785.93/x
  3. Step 3: Cross multiply
    981,448.25x = 1,472,242.37 × 261,785.93
  4. Step 4: Simplify right side
    981,448.25x = 385,412,329,345.71
  5. Step 5: Solve for x
    x = 385,412,329,345.71/981,448.25
  6. Step 6: Final answer
    x = 392,697.56

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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.