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Finding the Fourth Proportional to 550,124.80, 825,187.20 and 410,156.80

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Solution

The fourth proportional to 550,124.80, 825,187.20 and 410,156.80 is: 615,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,124.80 : 825,187.20 = 410,156.80 : x
  2. Step 2: Convert to fraction form
    550,124.80/825,187.20 = 410,156.80/x
  3. Step 3: Cross multiply
    550,124.80x = 825,187.20 × 410,156.80
  4. Step 4: Simplify right side
    550,124.80x = 338,456,141,352.96
  5. Step 5: Solve for x
    x = 338,456,141,352.96/550,124.80
  6. Step 6: Final answer
    x = 615,235.20

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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.