Home / 880,167.20-1,321,125.60-431,394.80

Finding the Fourth Proportional to 880,167.20, 1,321,125.60 and 431,394.80

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Solution

The fourth proportional to 880,167.20, 1,321,125.60 and 431,394.80 is: 647,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,167.20 : 1,321,125.60 = 431,394.80 : x
  2. Step 2: Convert to fraction form
    880,167.20/1,321,125.60 = 431,394.80/x
  3. Step 3: Cross multiply
    880,167.20x = 1,321,125.60 × 431,394.80
  4. Step 4: Simplify right side
    880,167.20x = 569,926,713,986.88
  5. Step 5: Solve for x
    x = 569,926,713,986.88/880,167.20
  6. Step 6: Final answer
    x = 647,520.96

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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.