Home / 1,225,729.20-1,838,593.80-747,432.30

Finding the Fourth Proportional to 1,225,729.20, 1,838,593.80 and 747,432.30

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Solution

The fourth proportional to 1,225,729.20, 1,838,593.80 and 747,432.30 is: 1,121,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,729.20 : 1,838,593.80 = 747,432.30 : x
  2. Step 2: Convert to fraction form
    1,225,729.20/1,838,593.80 = 747,432.30/x
  3. Step 3: Cross multiply
    1,225,729.20x = 1,838,593.80 × 747,432.30
  4. Step 4: Simplify right side
    1,225,729.20x = 1,374,224,392,699.74
  5. Step 5: Solve for x
    x = 1,374,224,392,699.74/1,225,729.20
  6. Step 6: Final answer
    x = 1,121,148.45

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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.