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Finding the Fourth Proportional to 550,366.20, 825,549.30 and 485,412.30

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Solution

The fourth proportional to 550,366.20, 825,549.30 and 485,412.30 is: 728,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,366.20 : 825,549.30 = 485,412.30 : x
  2. Step 2: Convert to fraction form
    550,366.20/825,549.30 = 485,412.30/x
  3. Step 3: Cross multiply
    550,366.20x = 825,549.30 × 485,412.30
  4. Step 4: Simplify right side
    550,366.20x = 400,731,784,476.39
  5. Step 5: Solve for x
    x = 400,731,784,476.39/550,366.20
  6. Step 6: Final answer
    x = 728,118.45

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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.