Home / 578,517.66-868,336.22-279,208.96

Finding the Fourth Proportional to 578,517.66, 868,336.22 and 279,208.96

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Solution

The fourth proportional to 578,517.66, 868,336.22 and 279,208.96 is: 419,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,517.66 : 868,336.22 = 279,208.96 : x
  2. Step 2: Convert to fraction form
    578,517.66/868,336.22 = 279,208.96/x
  3. Step 3: Cross multiply
    578,517.66x = 868,336.22 × 279,208.96
  4. Step 4: Simplify right side
    578,517.66x = 242,447,249,873.16
  5. Step 5: Solve for x
    x = 242,447,249,873.16/578,517.66
  6. Step 6: Final answer
    x = 419,083.58

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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.