Home / 486,525.83-729,787.02-131,539.78

Finding the Fourth Proportional to 486,525.83, 729,787.02 and 131,539.78

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Solution

The fourth proportional to 486,525.83, 729,787.02 and 131,539.78 is: 197,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,525.83 : 729,787.02 = 131,539.78 : x
  2. Step 2: Convert to fraction form
    486,525.83/729,787.02 = 131,539.78/x
  3. Step 3: Cross multiply
    486,525.83x = 729,787.02 × 131,539.78
  4. Step 4: Simplify right side
    486,525.83x = 95,996,024,476.62
  5. Step 5: Solve for x
    x = 95,996,024,476.62/486,525.83
  6. Step 6: Final answer
    x = 197,309.21

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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.