Home / 698,979.80-1,048,469.70-225,680.60

Finding the Fourth Proportional to 698,979.80, 1,048,469.70 and 225,680.60

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Solution

The fourth proportional to 698,979.80, 1,048,469.70 and 225,680.60 is: 338,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,979.80 : 1,048,469.70 = 225,680.60 : x
  2. Step 2: Convert to fraction form
    698,979.80/1,048,469.70 = 225,680.60/x
  3. Step 3: Cross multiply
    698,979.80x = 1,048,469.70 × 225,680.60
  4. Step 4: Simplify right side
    698,979.80x = 236,619,270,977.82
  5. Step 5: Solve for x
    x = 236,619,270,977.82/698,979.80
  6. Step 6: Final answer
    x = 338,520.90

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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.