Home / 712,003.12-1,067,838.56-206,428.41

Finding the Fourth Proportional to 712,003.12, 1,067,838.56 and 206,428.41

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Solution

The fourth proportional to 712,003.12, 1,067,838.56 and 206,428.41 is: 309,594.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,003.12 : 1,067,838.56 = 206,428.41 : x
  2. Step 2: Convert to fraction form
    712,003.12/1,067,838.56 = 206,428.41/x
  3. Step 3: Cross multiply
    712,003.12x = 1,067,838.56 × 206,428.41
  4. Step 4: Simplify right side
    712,003.12x = 220,432,209,706.16
  5. Step 5: Solve for x
    x = 220,432,209,706.16/712,003.12
  6. Step 6: Final answer
    x = 309,594.44

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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.