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Finding the Fourth Proportional to 499,891.93, 749,839.83 and 120,812.04

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Solution

The fourth proportional to 499,891.93, 749,839.83 and 120,812.04 is: 181,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,891.93 : 749,839.83 = 120,812.04 : x
  2. Step 2: Convert to fraction form
    499,891.93/749,839.83 = 120,812.04/x
  3. Step 3: Cross multiply
    499,891.93x = 749,839.83 × 120,812.04
  4. Step 4: Simplify right side
    499,891.93x = 90,589,682,925.46
  5. Step 5: Solve for x
    x = 90,589,682,925.46/499,891.93
  6. Step 6: Final answer
    x = 181,218.53

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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.