Home / 479,317.90-661,517.28-275,368.44

Finding the Fourth Proportional to 479,317.90, 661,517.28 and 275,368.44

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Solution

The fourth proportional to 479,317.90, 661,517.28 and 275,368.44 is: 380,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,317.90 : 661,517.28 = 275,368.44 : x
  2. Step 2: Convert to fraction form
    479,317.90/661,517.28 = 275,368.44/x
  3. Step 3: Cross multiply
    479,317.90x = 661,517.28 × 275,368.44
  4. Step 4: Simplify right side
    479,317.90x = 182,160,981,426.64
  5. Step 5: Solve for x
    x = 182,160,981,426.64/479,317.90
  6. Step 6: Final answer
    x = 380,042.10

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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.