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Finding the Fourth Proportional to 550,091.80, 825,137.70 and 410,123.80

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Solution

The fourth proportional to 550,091.80, 825,137.70 and 410,123.80 is: 615,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,091.80 : 825,137.70 = 410,123.80 : x
  2. Step 2: Convert to fraction form
    550,091.80/825,137.70 = 410,123.80/x
  3. Step 3: Cross multiply
    550,091.80x = 825,137.70 × 410,123.80
  4. Step 4: Simplify right side
    550,091.80x = 338,408,609,047.26
  5. Step 5: Solve for x
    x = 338,408,609,047.26/550,091.80
  6. Step 6: Final answer
    x = 615,185.70

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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.