Home / 326,615.82-489,733.05-126,702.61

Finding the Fourth Proportional to 326,615.82, 489,733.05 and 126,702.61

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Solution

The fourth proportional to 326,615.82, 489,733.05 and 126,702.61 is: 189,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,615.82 : 489,733.05 = 126,702.61 : x
  2. Step 2: Convert to fraction form
    326,615.82/489,733.05 = 126,702.61/x
  3. Step 3: Cross multiply
    326,615.82x = 489,733.05 × 126,702.61
  4. Step 4: Simplify right side
    326,615.82x = 62,050,454,889.06
  5. Step 5: Solve for x
    x = 62,050,454,889.06/326,615.82
  6. Step 6: Final answer
    x = 189,979.94

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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.