Home / 479,017.12-661,043.44-275,081.44

Finding the Fourth Proportional to 479,017.12, 661,043.44 and 275,081.44

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Solution

The fourth proportional to 479,017.12, 661,043.44 and 275,081.44 is: 379,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,017.12 : 661,043.44 = 275,081.44 : x
  2. Step 2: Convert to fraction form
    479,017.12/661,043.44 = 275,081.44/x
  3. Step 3: Cross multiply
    479,017.12x = 661,043.44 × 275,081.44
  4. Step 4: Simplify right side
    479,017.12x = 181,840,781,377.75
  5. Step 5: Solve for x
    x = 181,840,781,377.75/479,017.12
  6. Step 6: Final answer
    x = 379,612.28

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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.