Home / 638,680.32-958,393.92-354,610.24

Finding the Fourth Proportional to 638,680.32, 958,393.92 and 354,610.24

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Solution

The fourth proportional to 638,680.32, 958,393.92 and 354,610.24 is: 532,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,680.32 : 958,393.92 = 354,610.24 : x
  2. Step 2: Convert to fraction form
    638,680.32/958,393.92 = 354,610.24/x
  3. Step 3: Cross multiply
    638,680.32x = 958,393.92 × 354,610.24
  4. Step 4: Simplify right side
    638,680.32x = 339,856,297,985.74
  5. Step 5: Solve for x
    x = 339,856,297,985.74/638,680.32
  6. Step 6: Final answer
    x = 532,122.70

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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.