Home / 516,520.40-774,336.82-179,517.28

Finding the Fourth Proportional to 516,520.40, 774,336.82 and 179,517.28

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Solution

The fourth proportional to 516,520.40, 774,336.82 and 179,517.28 is: 269,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,520.40 : 774,336.82 = 179,517.28 : x
  2. Step 2: Convert to fraction form
    516,520.40/774,336.82 = 179,517.28/x
  3. Step 3: Cross multiply
    516,520.40x = 774,336.82 × 179,517.28
  4. Step 4: Simplify right side
    516,520.40x = 139,006,839,730.25
  5. Step 5: Solve for x
    x = 139,006,839,730.25/516,520.40
  6. Step 6: Final answer
    x = 269,121.68

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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.