Home / 498,938.72-748,458.48-161,965.28

Finding the Fourth Proportional to 498,938.72, 748,458.48 and 161,965.28

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Solution

The fourth proportional to 498,938.72, 748,458.48 and 161,965.28 is: 242,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,938.72 : 748,458.48 = 161,965.28 : x
  2. Step 2: Convert to fraction form
    498,938.72/748,458.48 = 161,965.28/x
  3. Step 3: Cross multiply
    498,938.72x = 748,458.48 × 161,965.28
  4. Step 4: Simplify right side
    498,938.72x = 121,224,287,281.57
  5. Step 5: Solve for x
    x = 121,224,287,281.57/498,938.72
  6. Step 6: Final answer
    x = 242,964.28

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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.