Home / 669,069.60-1,003,604.40-219,859.80

Finding the Fourth Proportional to 669,069.60, 1,003,604.40 and 219,859.80

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Solution

The fourth proportional to 669,069.60, 1,003,604.40 and 219,859.80 is: 329,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,069.60 : 1,003,604.40 = 219,859.80 : x
  2. Step 2: Convert to fraction form
    669,069.60/1,003,604.40 = 219,859.80/x
  3. Step 3: Cross multiply
    669,069.60x = 1,003,604.40 × 219,859.80
  4. Step 4: Simplify right side
    669,069.60x = 220,652,262,663.12
  5. Step 5: Solve for x
    x = 220,652,262,663.12/669,069.60
  6. Step 6: Final answer
    x = 329,789.70

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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.