Home / 326,534.52-489,613.20-126,621.36

Finding the Fourth Proportional to 326,534.52, 489,613.20 and 126,621.36

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Solution

The fourth proportional to 326,534.52, 489,613.20 and 126,621.36 is: 189,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,534.52 : 489,613.20 = 126,621.36 : x
  2. Step 2: Convert to fraction form
    326,534.52/489,613.20 = 126,621.36/x
  3. Step 3: Cross multiply
    326,534.52x = 489,613.20 × 126,621.36
  4. Step 4: Simplify right side
    326,534.52x = 61,995,489,257.95
  5. Step 5: Solve for x
    x = 61,995,489,257.95/326,534.52
  6. Step 6: Final answer
    x = 189,858.91

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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.