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Finding the Fourth Proportional to 550,257.30, 825,385.95 and 480,273.30

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Solution

The fourth proportional to 550,257.30, 825,385.95 and 480,273.30 is: 720,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,257.30 : 825,385.95 = 480,273.30 : x
  2. Step 2: Convert to fraction form
    550,257.30/825,385.95 = 480,273.30/x
  3. Step 3: Cross multiply
    550,257.30x = 825,385.95 × 480,273.30
  4. Step 4: Simplify right side
    550,257.30x = 396,410,833,980.14
  5. Step 5: Solve for x
    x = 396,410,833,980.14/550,257.30
  6. Step 6: Final answer
    x = 720,409.95

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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.