Home / 1,381,772.50-1,906,849.95-801,108.20

Finding the Fourth Proportional to 1,381,772.50, 1,906,849.95 and 801,108.20

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Solution

The fourth proportional to 1,381,772.50, 1,906,849.95 and 801,108.20 is: 1,105,531.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,772.50 : 1,906,849.95 = 801,108.20 : x
  2. Step 2: Convert to fraction form
    1,381,772.50/1,906,849.95 = 801,108.20/x
  3. Step 3: Cross multiply
    1,381,772.50x = 1,906,849.95 × 801,108.20
  4. Step 4: Simplify right side
    1,381,772.50x = 1,527,593,131,114.59
  5. Step 5: Solve for x
    x = 1,527,593,131,114.59/1,381,772.50
  6. Step 6: Final answer
    x = 1,105,531.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.