Home / 326,627.12-489,481.20-259,770.53

Finding the Fourth Proportional to 326,627.12, 489,481.20 and 259,770.53

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Solution

The fourth proportional to 326,627.12, 489,481.20 and 259,770.53 is: 389,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,627.12 : 489,481.20 = 259,770.53 : x
  2. Step 2: Convert to fraction form
    326,627.12/489,481.20 = 259,770.53/x
  3. Step 3: Cross multiply
    326,627.12x = 489,481.20 × 259,770.53
  4. Step 4: Simplify right side
    326,627.12x = 127,152,788,301.63
  5. Step 5: Solve for x
    x = 127,152,788,301.63/326,627.12
  6. Step 6: Final answer
    x = 389,290.36

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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.