Home / 326,619.38-489,738.40-126,706.18

Finding the Fourth Proportional to 326,619.38, 489,738.40 and 126,706.18

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Solution

The fourth proportional to 326,619.38, 489,738.40 and 126,706.18 is: 189,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619.38 : 489,738.40 = 126,706.18 : x
  2. Step 2: Convert to fraction form
    326,619.38/489,738.40 = 126,706.18/x
  3. Step 3: Cross multiply
    326,619.38x = 489,738.40 × 126,706.18
  4. Step 4: Simplify right side
    326,619.38x = 62,052,881,863.31
  5. Step 5: Solve for x
    x = 62,052,881,863.31/326,619.38
  6. Step 6: Final answer
    x = 189,985.30

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1.5x scale

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.