Home / 2,621,691.12-3,932,748.88-728,432.72

Finding the Fourth Proportional to 2,621,691.12, 3,932,748.88 and 728,432.72

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Solution

The fourth proportional to 2,621,691.12, 3,932,748.88 and 728,432.72 is: 1,092,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,691.12 : 3,932,748.88 = 728,432.72 : x
  2. Step 2: Convert to fraction form
    2,621,691.12/3,932,748.88 = 728,432.72/x
  3. Step 3: Cross multiply
    2,621,691.12x = 3,932,748.88 × 728,432.72
  4. Step 4: Simplify right side
    2,621,691.12x = 2,864,742,963,735.35
  5. Step 5: Solve for x
    x = 2,864,742,963,735.35/2,621,691.12
  6. Step 6: Final answer
    x = 1,092,708.04

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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.