Home / 712,003.31-1,067,838.83-206,428.59

Finding the Fourth Proportional to 712,003.31, 1,067,838.83 and 206,428.59

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Solution

The fourth proportional to 712,003.31, 1,067,838.83 and 206,428.59 is: 309,594.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,003.31 : 1,067,838.83 = 206,428.59 : x
  2. Step 2: Convert to fraction form
    712,003.31/1,067,838.83 = 206,428.59/x
  3. Step 3: Cross multiply
    712,003.31x = 1,067,838.83 × 206,428.59
  4. Step 4: Simplify right side
    712,003.31x = 220,432,464,024.15
  5. Step 5: Solve for x
    x = 220,432,464,024.15/712,003.31
  6. Step 6: Final answer
    x = 309,594.72

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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.