Home / 712,000.12-1,067,834.05-206,425.41

Finding the Fourth Proportional to 712,000.12, 1,067,834.05 and 206,425.41

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Solution

The fourth proportional to 712,000.12, 1,067,834.05 and 206,425.41 is: 309,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,000.12 : 1,067,834.05 = 206,425.41 : x
  2. Step 2: Convert to fraction form
    712,000.12/1,067,834.05 = 206,425.41/x
  3. Step 3: Cross multiply
    712,000.12x = 1,067,834.05 × 206,425.41
  4. Step 4: Simplify right side
    712,000.12x = 220,428,081,583.21
  5. Step 5: Solve for x
    x = 220,428,081,583.21/712,000.12
  6. Step 6: Final answer
    x = 309,589.95

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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.