Home / 828,163.60-1,242,245.40-725,520.40

Finding the Fourth Proportional to 828,163.60, 1,242,245.40 and 725,520.40

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Solution

The fourth proportional to 828,163.60, 1,242,245.40 and 725,520.40 is: 1,088,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,163.60 : 1,242,245.40 = 725,520.40 : x
  2. Step 2: Convert to fraction form
    828,163.60/1,242,245.40 = 725,520.40/x
  3. Step 3: Cross multiply
    828,163.60x = 1,242,245.40 × 725,520.40
  4. Step 4: Simplify right side
    828,163.60x = 901,274,379,506.16
  5. Step 5: Solve for x
    x = 901,274,379,506.16/828,163.60
  6. Step 6: Final answer
    x = 1,088,280.60

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Double scale
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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.