Home / 395,129.79-592,095.99-261,531.43

Finding the Fourth Proportional to 395,129.79, 592,095.99 and 261,531.43

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Solution

The fourth proportional to 395,129.79, 592,095.99 and 261,531.43 is: 391,900.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,129.79 : 592,095.99 = 261,531.43 : x
  2. Step 2: Convert to fraction form
    395,129.79/592,095.99 = 261,531.43/x
  3. Step 3: Cross multiply
    395,129.79x = 592,095.99 × 261,531.43
  4. Step 4: Simplify right side
    395,129.79x = 154,851,709,481.73
  5. Step 5: Solve for x
    x = 154,851,709,481.73/395,129.79
  6. Step 6: Final answer
    x = 391,900.87

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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.