Home / 858,788.85-1,288,385.60-259,754.97

Finding the Fourth Proportional to 858,788.85, 1,288,385.60 and 259,754.97

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Solution

The fourth proportional to 858,788.85, 1,288,385.60 and 259,754.97 is: 389,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,788.85 : 1,288,385.60 = 259,754.97 : x
  2. Step 2: Convert to fraction form
    858,788.85/1,288,385.60 = 259,754.97/x
  3. Step 3: Cross multiply
    858,788.85x = 1,288,385.60 × 259,754.97
  4. Step 4: Simplify right side
    858,788.85x = 334,664,562,876.43
  5. Step 5: Solve for x
    x = 334,664,562,876.43/858,788.85
  6. Step 6: Final answer
    x = 389,693.65

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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.