Home / 858,766.87-1,288,149.22-326,160.55

Finding the Fourth Proportional to 858,766.87, 1,288,149.22 and 326,160.55

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Solution

The fourth proportional to 858,766.87, 1,288,149.22 and 326,160.55 is: 489,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,766.87 : 1,288,149.22 = 326,160.55 : x
  2. Step 2: Convert to fraction form
    858,766.87/1,288,149.22 = 326,160.55/x
  3. Step 3: Cross multiply
    858,766.87x = 1,288,149.22 × 326,160.55
  4. Step 4: Simplify right side
    858,766.87x = 420,143,458,077.27
  5. Step 5: Solve for x
    x = 420,143,458,077.27/858,766.87
  6. Step 6: Final answer
    x = 489,240.41

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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.