Home / 498,756.09-748,239.34-161,770.57

Finding the Fourth Proportional to 498,756.09, 748,239.34 and 161,770.57

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Solution

The fourth proportional to 498,756.09, 748,239.34 and 161,770.57 is: 242,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,756.09 : 748,239.34 = 161,770.57 : x
  2. Step 2: Convert to fraction form
    498,756.09/748,239.34 = 161,770.57/x
  3. Step 3: Cross multiply
    498,756.09x = 748,239.34 × 161,770.57
  4. Step 4: Simplify right side
    498,756.09x = 121,043,101,874.05
  5. Step 5: Solve for x
    x = 121,043,101,874.05/498,756.09
  6. Step 6: Final answer
    x = 242,689.97

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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.