Home / 981,572.28-1,472,376.86-307,638.67

Finding the Fourth Proportional to 981,572.28, 1,472,376.86 and 307,638.67

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Solution

The fourth proportional to 981,572.28, 1,472,376.86 and 307,638.67 is: 461,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,572.28 : 1,472,376.86 = 307,638.67 : x
  2. Step 2: Convert to fraction form
    981,572.28/1,472,376.86 = 307,638.67/x
  3. Step 3: Cross multiply
    981,572.28x = 1,472,376.86 × 307,638.67
  4. Step 4: Simplify right side
    981,572.28x = 452,960,058,949.18
  5. Step 5: Solve for x
    x = 452,960,058,949.18/981,572.28
  6. Step 6: Final answer
    x = 461,463.78

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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.