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Finding the Fourth Proportional to 440,816.80, 662,634.60 and 409,615.60

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Solution

The fourth proportional to 440,816.80, 662,634.60 and 409,615.60 is: 615,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,816.80 : 662,634.60 = 409,615.60 : x
  2. Step 2: Convert to fraction form
    440,816.80/662,634.60 = 409,615.60/x
  3. Step 3: Cross multiply
    440,816.80x = 662,634.60 × 409,615.60
  4. Step 4: Simplify right side
    440,816.80x = 271,425,469,259.76
  5. Step 5: Solve for x
    x = 271,425,469,259.76/440,816.80
  6. Step 6: Final answer
    x = 615,733.04

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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.