Home / 791,380.80-1,187,071.20-230,433.60

Finding the Fourth Proportional to 791,380.80, 1,187,071.20 and 230,433.60

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Solution

The fourth proportional to 791,380.80, 1,187,071.20 and 230,433.60 is: 345,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,380.80 : 1,187,071.20 = 230,433.60 : x
  2. Step 2: Convert to fraction form
    791,380.80/1,187,071.20 = 230,433.60/x
  3. Step 3: Cross multiply
    791,380.80x = 1,187,071.20 × 230,433.60
  4. Step 4: Simplify right side
    791,380.80x = 273,541,090,072.32
  5. Step 5: Solve for x
    x = 273,541,090,072.32/791,380.80
  6. Step 6: Final answer
    x = 345,650.40

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Half scale
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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.