Home / 518,231.08-777,761.34-268,984.36

Finding the Fourth Proportional to 518,231.08, 777,761.34 and 268,984.36

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Solution

The fourth proportional to 518,231.08, 777,761.34 and 268,984.36 is: 403,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,231.08 : 777,761.34 = 268,984.36 : x
  2. Step 2: Convert to fraction form
    518,231.08/777,761.34 = 268,984.36/x
  3. Step 3: Cross multiply
    518,231.08x = 777,761.34 × 268,984.36
  4. Step 4: Simplify right side
    518,231.08x = 209,205,636,272.64
  5. Step 5: Solve for x
    x = 209,205,636,272.64/518,231.08
  6. Step 6: Final answer
    x = 403,691.80

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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.