Home / 859,194.40-1,288,305.60-326,732.80

Finding the Fourth Proportional to 859,194.40, 1,288,305.60 and 326,732.80

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Solution

The fourth proportional to 859,194.40, 1,288,305.60 and 326,732.80 is: 489,914.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,194.40 : 1,288,305.60 = 326,732.80 : x
  2. Step 2: Convert to fraction form
    859,194.40/1,288,305.60 = 326,732.80/x
  3. Step 3: Cross multiply
    859,194.40x = 1,288,305.60 × 326,732.80
  4. Step 4: Simplify right side
    859,194.40x = 420,931,695,943.68
  5. Step 5: Solve for x
    x = 420,931,695,943.68/859,194.40
  6. Step 6: Final answer
    x = 489,914.38

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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.