Home / 712,076.38-1,067,376.44-445,224.11

Finding the Fourth Proportional to 712,076.38, 1,067,376.44 and 445,224.11

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Solution

The fourth proportional to 712,076.38, 1,067,376.44 and 445,224.11 is: 667,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,076.38 : 1,067,376.44 = 445,224.11 : x
  2. Step 2: Convert to fraction form
    712,076.38/1,067,376.44 = 445,224.11/x
  3. Step 3: Cross multiply
    712,076.38x = 1,067,376.44 × 445,224.11
  4. Step 4: Simplify right side
    712,076.38x = 475,221,725,533.97
  5. Step 5: Solve for x
    x = 475,221,725,533.97/712,076.38
  6. Step 6: Final answer
    x = 667,374.65

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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.