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Finding the Fourth Proportional to 550,672.20, 826,008.30 and 340,720.20

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Solution

The fourth proportional to 550,672.20, 826,008.30 and 340,720.20 is: 511,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,672.20 : 826,008.30 = 340,720.20 : x
  2. Step 2: Convert to fraction form
    550,672.20/826,008.30 = 340,720.20/x
  3. Step 3: Cross multiply
    550,672.20x = 826,008.30 × 340,720.20
  4. Step 4: Simplify right side
    550,672.20x = 281,437,713,177.66
  5. Step 5: Solve for x
    x = 281,437,713,177.66/550,672.20
  6. Step 6: Final answer
    x = 511,080.30

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Similar ratio
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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.