Home / 806,738.60-1,210,107.90-694,764.20

Finding the Fourth Proportional to 806,738.60, 1,210,107.90 and 694,764.20

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Solution

The fourth proportional to 806,738.60, 1,210,107.90 and 694,764.20 is: 1,042,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,738.60 : 1,210,107.90 = 694,764.20 : x
  2. Step 2: Convert to fraction form
    806,738.60/1,210,107.90 = 694,764.20/x
  3. Step 3: Cross multiply
    806,738.60x = 1,210,107.90 × 694,764.20
  4. Step 4: Simplify right side
    806,738.60x = 840,739,647,057.18
  5. Step 5: Solve for x
    x = 840,739,647,057.18/806,738.60
  6. Step 6: Final answer
    x = 1,042,146.30

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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.