Home / 712,080.45-1,067,382.54-445,228.17

Finding the Fourth Proportional to 712,080.45, 1,067,382.54 and 445,228.17

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Solution

The fourth proportional to 712,080.45, 1,067,382.54 and 445,228.17 is: 667,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,080.45 : 1,067,382.54 = 445,228.17 : x
  2. Step 2: Convert to fraction form
    712,080.45/1,067,382.54 = 445,228.17/x
  3. Step 3: Cross multiply
    712,080.45x = 1,067,382.54 × 445,228.17
  4. Step 4: Simplify right side
    712,080.45x = 475,228,774,974.15
  5. Step 5: Solve for x
    x = 475,228,774,974.15/712,080.45
  6. Step 6: Final answer
    x = 667,380.74

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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.