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Finding the Fourth Proportional to 484,959.64, 727,439.46 and 169,419.28

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Solution

The fourth proportional to 484,959.64, 727,439.46 and 169,419.28 is: 254,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,959.64 : 727,439.46 = 169,419.28 : x
  2. Step 2: Convert to fraction form
    484,959.64/727,439.46 = 169,419.28/x
  3. Step 3: Cross multiply
    484,959.64x = 727,439.46 × 169,419.28
  4. Step 4: Simplify right side
    484,959.64x = 123,242,269,556.79
  5. Step 5: Solve for x
    x = 123,242,269,556.79/484,959.64
  6. Step 6: Final answer
    x = 254,128.92

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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.