Home / 927,449.64-1,391,128.20-543,415.68

Finding the Fourth Proportional to 927,449.64, 1,391,128.20 and 543,415.68

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Solution

The fourth proportional to 927,449.64, 1,391,128.20 and 543,415.68 is: 815,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,449.64 : 1,391,128.20 = 543,415.68 : x
  2. Step 2: Convert to fraction form
    927,449.64/1,391,128.20 = 543,415.68/x
  3. Step 3: Cross multiply
    927,449.64x = 1,391,128.20 × 543,415.68
  4. Step 4: Simplify right side
    927,449.64x = 755,960,876,770.18
  5. Step 5: Solve for x
    x = 755,960,876,770.18/927,449.64
  6. Step 6: Final answer
    x = 815,096.42

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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.