Home / 865,666.20-1,298,499.30-802,680.60

Finding the Fourth Proportional to 865,666.20, 1,298,499.30 and 802,680.60

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Solution

The fourth proportional to 865,666.20, 1,298,499.30 and 802,680.60 is: 1,204,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,666.20 : 1,298,499.30 = 802,680.60 : x
  2. Step 2: Convert to fraction form
    865,666.20/1,298,499.30 = 802,680.60/x
  3. Step 3: Cross multiply
    865,666.20x = 1,298,499.30 × 802,680.60
  4. Step 4: Simplify right side
    865,666.20x = 1,042,280,197,223.58
  5. Step 5: Solve for x
    x = 1,042,280,197,223.58/865,666.20
  6. Step 6: Final answer
    x = 1,204,020.90

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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.