Home / 693,249.30-1,039,910.85-219,971.70

Finding the Fourth Proportional to 693,249.30, 1,039,910.85 and 219,971.70

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Solution

The fourth proportional to 693,249.30, 1,039,910.85 and 219,971.70 is: 329,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,249.30 : 1,039,910.85 = 219,971.70 : x
  2. Step 2: Convert to fraction form
    693,249.30/1,039,910.85 = 219,971.70/x
  3. Step 3: Cross multiply
    693,249.30x = 1,039,910.85 × 219,971.70
  4. Step 4: Simplify right side
    693,249.30x = 228,750,957,522.95
  5. Step 5: Solve for x
    x = 228,750,957,522.95/693,249.30
  6. Step 6: Final answer
    x = 329,969.26

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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.