Home / 865,704.20-1,298,556.30-802,718.60

Finding the Fourth Proportional to 865,704.20, 1,298,556.30 and 802,718.60

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Solution

The fourth proportional to 865,704.20, 1,298,556.30 and 802,718.60 is: 1,204,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,704.20 : 1,298,556.30 = 802,718.60 : x
  2. Step 2: Convert to fraction form
    865,704.20/1,298,556.30 = 802,718.60/x
  3. Step 3: Cross multiply
    865,704.20x = 1,298,556.30 × 802,718.60
  4. Step 4: Simplify right side
    865,704.20x = 1,042,375,295,157.18
  5. Step 5: Solve for x
    x = 1,042,375,295,157.18/865,704.20
  6. Step 6: Final answer
    x = 1,204,077.90

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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.