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Finding the Fourth Proportional to 551,461.80, 827,346.30 and 270,988.20

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Solution

The fourth proportional to 551,461.80, 827,346.30 and 270,988.20 is: 406,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,461.80 : 827,346.30 = 270,988.20 : x
  2. Step 2: Convert to fraction form
    551,461.80/827,346.30 = 270,988.20/x
  3. Step 3: Cross multiply
    551,461.80x = 827,346.30 × 270,988.20
  4. Step 4: Simplify right side
    551,461.80x = 224,201,084,613.66
  5. Step 5: Solve for x
    x = 224,201,084,613.66/551,461.80
  6. Step 6: Final answer
    x = 406,557.78

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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.