Home / 440,928.27-661,321.55-121,005.41

Finding the Fourth Proportional to 440,928.27, 661,321.55 and 121,005.41

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Solution

The fourth proportional to 440,928.27, 661,321.55 and 121,005.41 is: 181,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,928.27 : 661,321.55 = 121,005.41 : x
  2. Step 2: Convert to fraction form
    440,928.27/661,321.55 = 121,005.41/x
  3. Step 3: Cross multiply
    440,928.27x = 661,321.55 × 121,005.41
  4. Step 4: Simplify right side
    440,928.27x = 80,023,482,295.49
  5. Step 5: Solve for x
    x = 80,023,482,295.49/440,928.27
  6. Step 6: Final answer
    x = 181,488.66

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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.