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Finding the Fourth Proportional to 656,452.80, 984,808.80 and 551,995.20

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Solution

The fourth proportional to 656,452.80, 984,808.80 and 551,995.20 is: 828,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,452.80 : 984,808.80 = 551,995.20 : x
  2. Step 2: Convert to fraction form
    656,452.80/984,808.80 = 551,995.20/x
  3. Step 3: Cross multiply
    656,452.80x = 984,808.80 × 551,995.20
  4. Step 4: Simplify right side
    656,452.80x = 543,609,730,517.76
  5. Step 5: Solve for x
    x = 543,609,730,517.76/656,452.80
  6. Step 6: Final answer
    x = 828,101.78

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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.