Home / 858,876.11-1,288,147.96-259,696.83

Finding the Fourth Proportional to 858,876.11, 1,288,147.96 and 259,696.83

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Solution

The fourth proportional to 858,876.11, 1,288,147.96 and 259,696.83 is: 389,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,876.11 : 1,288,147.96 = 259,696.83 : x
  2. Step 2: Convert to fraction form
    858,876.11/1,288,147.96 = 259,696.83/x
  3. Step 3: Cross multiply
    858,876.11x = 1,288,147.96 × 259,696.83
  4. Step 4: Simplify right side
    858,876.11x = 334,527,946,938.14
  5. Step 5: Solve for x
    x = 334,527,946,938.14/858,876.11
  6. Step 6: Final answer
    x = 389,495.00

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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.