Home / 485,401.20-727,907.40-169,695.60

Finding the Fourth Proportional to 485,401.20, 727,907.40 and 169,695.60

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Solution

The fourth proportional to 485,401.20, 727,907.40 and 169,695.60 is: 254,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,401.20 : 727,907.40 = 169,695.60 : x
  2. Step 2: Convert to fraction form
    485,401.20/727,907.40 = 169,695.60/x
  3. Step 3: Cross multiply
    485,401.20x = 727,907.40 × 169,695.60
  4. Step 4: Simplify right side
    485,401.20x = 123,522,682,987.44
  5. Step 5: Solve for x
    x = 123,522,682,987.44/485,401.20
  6. Step 6: Final answer
    x = 254,475.44

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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.