Home / 981,612.96-1,472,376.62-307,678.89

Finding the Fourth Proportional to 981,612.96, 1,472,376.62 and 307,678.89

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Solution

The fourth proportional to 981,612.96, 1,472,376.62 and 307,678.89 is: 461,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,612.96 : 1,472,376.62 = 307,678.89 : x
  2. Step 2: Convert to fraction form
    981,612.96/1,472,376.62 = 307,678.89/x
  3. Step 3: Cross multiply
    981,612.96x = 1,472,376.62 × 307,678.89
  4. Step 4: Simplify right side
    981,612.96x = 453,019,202,565.16
  5. Step 5: Solve for x
    x = 453,019,202,565.16/981,612.96
  6. Step 6: Final answer
    x = 461,504.91

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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.