Home / 426,531.36-639,795.20-173,755.48

Finding the Fourth Proportional to 426,531.36, 639,795.20 and 173,755.48

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Solution

The fourth proportional to 426,531.36, 639,795.20 and 173,755.48 is: 260,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,531.36 : 639,795.20 = 173,755.48 : x
  2. Step 2: Convert to fraction form
    426,531.36/639,795.20 = 173,755.48/x
  3. Step 3: Cross multiply
    426,531.36x = 639,795.20 × 173,755.48
  4. Step 4: Simplify right side
    426,531.36x = 111,167,922,077.70
  5. Step 5: Solve for x
    x = 111,167,922,077.70/426,531.36
  6. Step 6: Final answer
    x = 260,632.47

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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.