Home / 807,676.56-1,211,534.28-386,489.52

Finding the Fourth Proportional to 807,676.56, 1,211,534.28 and 386,489.52

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Solution

The fourth proportional to 807,676.56, 1,211,534.28 and 386,489.52 is: 579,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,676.56 : 1,211,534.28 = 386,489.52 : x
  2. Step 2: Convert to fraction form
    807,676.56/1,211,534.28 = 386,489.52/x
  3. Step 3: Cross multiply
    807,676.56x = 1,211,534.28 × 386,489.52
  4. Step 4: Simplify right side
    807,676.56x = 468,245,302,340.75
  5. Step 5: Solve for x
    x = 468,245,302,340.75/807,676.56
  6. Step 6: Final answer
    x = 579,743.58

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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.