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Finding the Fourth Proportional to 518,233.84, 777,765.46 and 268,987.12

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Solution

The fourth proportional to 518,233.84, 777,765.46 and 268,987.12 is: 403,695.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,233.84 : 777,765.46 = 268,987.12 : x
  2. Step 2: Convert to fraction form
    518,233.84/777,765.46 = 268,987.12/x
  3. Step 3: Cross multiply
    518,233.84x = 777,765.46 × 268,987.12
  4. Step 4: Simplify right side
    518,233.84x = 209,208,891,120.88
  5. Step 5: Solve for x
    x = 209,208,891,120.88/518,233.84
  6. Step 6: Final answer
    x = 403,695.93

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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.