Home / 829,672.20-1,244,508.30-431,091.45

Finding the Fourth Proportional to 829,672.20, 1,244,508.30 and 431,091.45

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Solution

The fourth proportional to 829,672.20, 1,244,508.30 and 431,091.45 is: 646,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,672.20 : 1,244,508.30 = 431,091.45 : x
  2. Step 2: Convert to fraction form
    829,672.20/1,244,508.30 = 431,091.45/x
  3. Step 3: Cross multiply
    829,672.20x = 1,244,508.30 × 431,091.45
  4. Step 4: Simplify right side
    829,672.20x = 536,496,887,584.04
  5. Step 5: Solve for x
    x = 536,496,887,584.04/829,672.20
  6. Step 6: Final answer
    x = 646,637.18

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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.