Home / 326,531.52-489,608.70-126,618.36

Finding the Fourth Proportional to 326,531.52, 489,608.70 and 126,618.36

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Solution

The fourth proportional to 326,531.52, 489,608.70 and 126,618.36 is: 189,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,531.52 : 489,608.70 = 126,618.36 : x
  2. Step 2: Convert to fraction form
    326,531.52/489,608.70 = 126,618.36/x
  3. Step 3: Cross multiply
    326,531.52x = 489,608.70 × 126,618.36
  4. Step 4: Simplify right side
    326,531.52x = 61,993,450,635.73
  5. Step 5: Solve for x
    x = 61,993,450,635.73/326,531.52
  6. Step 6: Final answer
    x = 189,854.41

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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.