Home / 918,472.29-1,377,233.78-412,600.74

Finding the Fourth Proportional to 918,472.29, 1,377,233.78 and 412,600.74

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Solution

The fourth proportional to 918,472.29, 1,377,233.78 and 412,600.74 is: 618,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,472.29 : 1,377,233.78 = 412,600.74 : x
  2. Step 2: Convert to fraction form
    918,472.29/1,377,233.78 = 412,600.74/x
  3. Step 3: Cross multiply
    918,472.29x = 1,377,233.78 × 412,600.74
  4. Step 4: Simplify right side
    918,472.29x = 568,247,677,812.50
  5. Step 5: Solve for x
    x = 568,247,677,812.50/918,472.29
  6. Step 6: Final answer
    x = 618,687.88

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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.