Home / 485,023.32-669,322.96-303,835.19

Finding the Fourth Proportional to 485,023.32, 669,322.96 and 303,835.19

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Solution

The fourth proportional to 485,023.32, 669,322.96 and 303,835.19 is: 419,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,023.32 : 669,322.96 = 303,835.19 : x
  2. Step 2: Convert to fraction form
    485,023.32/669,322.96 = 303,835.19/x
  3. Step 3: Cross multiply
    485,023.32x = 669,322.96 × 303,835.19
  4. Step 4: Simplify right side
    485,023.32x = 203,363,864,616.76
  5. Step 5: Solve for x
    x = 203,363,864,616.76/485,023.32
  6. Step 6: Final answer
    x = 419,286.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.