Home / 693,572.60-1,040,358.90-220,305.80

Finding the Fourth Proportional to 693,572.60, 1,040,358.90 and 220,305.80

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Solution

The fourth proportional to 693,572.60, 1,040,358.90 and 220,305.80 is: 330,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,572.60 : 1,040,358.90 = 220,305.80 : x
  2. Step 2: Convert to fraction form
    693,572.60/1,040,358.90 = 220,305.80/x
  3. Step 3: Cross multiply
    693,572.60x = 1,040,358.90 × 220,305.80
  4. Step 4: Simplify right side
    693,572.60x = 229,197,099,751.62
  5. Step 5: Solve for x
    x = 229,197,099,751.62/693,572.60
  6. Step 6: Final answer
    x = 330,458.70

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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.