Home / 669,489.30-1,004,331.15-220,230.90

Finding the Fourth Proportional to 669,489.30, 1,004,331.15 and 220,230.90

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Solution

The fourth proportional to 669,489.30, 1,004,331.15 and 220,230.90 is: 330,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,489.30 : 1,004,331.15 = 220,230.90 : x
  2. Step 2: Convert to fraction form
    669,489.30/1,004,331.15 = 220,230.90/x
  3. Step 3: Cross multiply
    669,489.30x = 1,004,331.15 × 220,230.90
  4. Step 4: Simplify right side
    669,489.30x = 221,184,753,062.54
  5. Step 5: Solve for x
    x = 221,184,753,062.54/669,489.30
  6. Step 6: Final answer
    x = 330,378.32

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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.