Home / 518,234.21-777,766.03-268,987.49

Finding the Fourth Proportional to 518,234.21, 777,766.03 and 268,987.49

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Solution

The fourth proportional to 518,234.21, 777,766.03 and 268,987.49 is: 403,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,234.21 : 777,766.03 = 268,987.49 : x
  2. Step 2: Convert to fraction form
    518,234.21/777,766.03 = 268,987.49/x
  3. Step 3: Cross multiply
    518,234.21x = 777,766.03 × 268,987.49
  4. Step 4: Simplify right side
    518,234.21x = 209,209,332,216.97
  5. Step 5: Solve for x
    x = 209,209,332,216.97/518,234.21
  6. Step 6: Final answer
    x = 403,696.49

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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.