Home / 485,179.20-669,467.52-270,270.72

Finding the Fourth Proportional to 485,179.20, 669,467.52 and 270,270.72

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Solution

The fourth proportional to 485,179.20, 669,467.52 and 270,270.72 is: 372,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,179.20 : 669,467.52 = 270,270.72 : x
  2. Step 2: Convert to fraction form
    485,179.20/669,467.52 = 270,270.72/x
  3. Step 3: Cross multiply
    485,179.20x = 669,467.52 × 270,270.72
  4. Step 4: Simplify right side
    485,179.20x = 180,937,468,647.01
  5. Step 5: Solve for x
    x = 180,937,468,647.01/485,179.20
  6. Step 6: Final answer
    x = 372,929.15

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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.