Home / 1,340,695.85-1,850,172.26-728,849.79

Finding the Fourth Proportional to 1,340,695.85, 1,850,172.26 and 728,849.79

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Solution

The fourth proportional to 1,340,695.85, 1,850,172.26 and 728,849.79 is: 1,005,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,695.85 : 1,850,172.26 = 728,849.79 : x
  2. Step 2: Convert to fraction form
    1,340,695.85/1,850,172.26 = 728,849.79/x
  3. Step 3: Cross multiply
    1,340,695.85x = 1,850,172.26 × 728,849.79
  4. Step 4: Simplify right side
    1,340,695.85x = 1,348,497,659,520.58
  5. Step 5: Solve for x
    x = 1,348,497,659,520.58/1,340,695.85
  6. Step 6: Final answer
    x = 1,005,819.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.