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Finding the Fourth Proportional to 485,562.23, 669,801.11 and 303,958.77

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Solution

The fourth proportional to 485,562.23, 669,801.11 and 303,958.77 is: 419,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,562.23 : 669,801.11 = 303,958.77 : x
  2. Step 2: Convert to fraction form
    485,562.23/669,801.11 = 303,958.77/x
  3. Step 3: Cross multiply
    485,562.23x = 669,801.11 × 303,958.77
  4. Step 4: Simplify right side
    485,562.23x = 203,591,921,540.24
  5. Step 5: Solve for x
    x = 203,591,921,540.24/485,562.23
  6. Step 6: Final answer
    x = 419,291.10

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1.5x scale

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.