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Finding the Fourth Proportional to 551,437.80, 827,310.30 and 270,964.20

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Solution

The fourth proportional to 551,437.80, 827,310.30 and 270,964.20 is: 406,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,437.80 : 827,310.30 = 270,964.20 : x
  2. Step 2: Convert to fraction form
    551,437.80/827,310.30 = 270,964.20/x
  3. Step 3: Cross multiply
    551,437.80x = 827,310.30 × 270,964.20
  4. Step 4: Simplify right side
    551,437.80x = 224,171,473,591.26
  5. Step 5: Solve for x
    x = 224,171,473,591.26/551,437.80
  6. Step 6: Final answer
    x = 406,521.78

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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.