Home / 426,314.22-639,471.33-268,150.38

Finding the Fourth Proportional to 426,314.22, 639,471.33 and 268,150.38

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Solution

The fourth proportional to 426,314.22, 639,471.33 and 268,150.38 is: 402,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,314.22 : 639,471.33 = 268,150.38 : x
  2. Step 2: Convert to fraction form
    426,314.22/639,471.33 = 268,150.38/x
  3. Step 3: Cross multiply
    426,314.22x = 639,471.33 × 268,150.38
  4. Step 4: Simplify right side
    426,314.22x = 171,474,480,138.61
  5. Step 5: Solve for x
    x = 171,474,480,138.61/426,314.22
  6. Step 6: Final answer
    x = 402,225.57

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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.