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Finding the Fourth Proportional to 551,449.80, 827,328.30 and 270,976.20

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Solution

The fourth proportional to 551,449.80, 827,328.30 and 270,976.20 is: 406,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,449.80 : 827,328.30 = 270,976.20 : x
  2. Step 2: Convert to fraction form
    551,449.80/827,328.30 = 270,976.20/x
  3. Step 3: Cross multiply
    551,449.80x = 827,328.30 × 270,976.20
  4. Step 4: Simplify right side
    551,449.80x = 224,186,278,886.46
  5. Step 5: Solve for x
    x = 224,186,278,886.46/551,449.80
  6. Step 6: Final answer
    x = 406,539.78

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1.5x scale

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.