Home / 499,539.12-749,111.45-199,963.86

Finding the Fourth Proportional to 499,539.12, 749,111.45 and 199,963.86

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Solution

The fourth proportional to 499,539.12, 749,111.45 and 199,963.86 is: 299,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,539.12 : 749,111.45 = 199,963.86 : x
  2. Step 2: Convert to fraction form
    499,539.12/749,111.45 = 199,963.86/x
  3. Step 3: Cross multiply
    499,539.12x = 749,111.45 × 199,963.86
  4. Step 4: Simplify right side
    499,539.12x = 149,795,216,112.38
  5. Step 5: Solve for x
    x = 149,795,216,112.38/499,539.12
  6. Step 6: Final answer
    x = 299,866.84

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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.