Home / 326,628.75-489,974.04-126,964.56

Finding the Fourth Proportional to 326,628.75, 489,974.04 and 126,964.56

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Solution

The fourth proportional to 326,628.75, 489,974.04 and 126,964.56 is: 190,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,628.75 : 489,974.04 = 126,964.56 : x
  2. Step 2: Convert to fraction form
    326,628.75/489,974.04 = 126,964.56/x
  3. Step 3: Cross multiply
    326,628.75x = 489,974.04 × 126,964.56
  4. Step 4: Simplify right side
    326,628.75x = 62,209,338,400.02
  5. Step 5: Solve for x
    x = 62,209,338,400.02/326,628.75
  6. Step 6: Final answer
    x = 190,458.86

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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.