Home / 638,029.42-880,203.96-379,761.55

Finding the Fourth Proportional to 638,029.42, 880,203.96 and 379,761.55

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Solution

The fourth proportional to 638,029.42, 880,203.96 and 379,761.55 is: 523,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,029.42 : 880,203.96 = 379,761.55 : x
  2. Step 2: Convert to fraction form
    638,029.42/880,203.96 = 379,761.55/x
  3. Step 3: Cross multiply
    638,029.42x = 880,203.96 × 379,761.55
  4. Step 4: Simplify right side
    638,029.42x = 334,267,615,764.72
  5. Step 5: Solve for x
    x = 334,267,615,764.72/638,029.42
  6. Step 6: Final answer
    x = 523,906.27

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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.