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Finding the Fourth Proportional to 479,523.92, 661,764.60 and 275,641.04

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Solution

The fourth proportional to 479,523.92, 661,764.60 and 275,641.04 is: 380,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,523.92 : 661,764.60 = 275,641.04 : x
  2. Step 2: Convert to fraction form
    479,523.92/661,764.60 = 275,641.04/x
  3. Step 3: Cross multiply
    479,523.92x = 661,764.60 × 275,641.04
  4. Step 4: Simplify right side
    479,523.92x = 182,409,482,579.18
  5. Step 5: Solve for x
    x = 182,409,482,579.18/479,523.92
  6. Step 6: Final answer
    x = 380,397.05

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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.