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Finding the Fourth Proportional to 550,219.80, 825,329.70 and 378,977.70

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Solution

The fourth proportional to 550,219.80, 825,329.70 and 378,977.70 is: 568,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,219.80 : 825,329.70 = 378,977.70 : x
  2. Step 2: Convert to fraction form
    550,219.80/825,329.70 = 378,977.70/x
  3. Step 3: Cross multiply
    550,219.80x = 825,329.70 × 378,977.70
  4. Step 4: Simplify right side
    550,219.80x = 312,781,551,447.69
  5. Step 5: Solve for x
    x = 312,781,551,447.69/550,219.80
  6. Step 6: Final answer
    x = 568,466.55

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Similar ratio
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1.5x scale

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.