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Finding the Fourth Proportional to 550,588.80, 825,883.20 and 410,620.80

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Solution

The fourth proportional to 550,588.80, 825,883.20 and 410,620.80 is: 615,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,588.80 : 825,883.20 = 410,620.80 : x
  2. Step 2: Convert to fraction form
    550,588.80/825,883.20 = 410,620.80/x
  3. Step 3: Cross multiply
    550,588.80x = 825,883.20 × 410,620.80
  4. Step 4: Simplify right side
    550,588.80x = 339,124,820,290.56
  5. Step 5: Solve for x
    x = 339,124,820,290.56/550,588.80
  6. Step 6: Final answer
    x = 615,931.20

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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.