Home / 669,517.03-1,004,164.71-220,243.51

Finding the Fourth Proportional to 669,517.03, 1,004,164.71 and 220,243.51

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Solution

The fourth proportional to 669,517.03, 1,004,164.71 and 220,243.51 is: 330,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,517.03 : 1,004,164.71 = 220,243.51 : x
  2. Step 2: Convert to fraction form
    669,517.03/1,004,164.71 = 220,243.51/x
  3. Step 3: Cross multiply
    669,517.03x = 1,004,164.71 × 220,243.51
  4. Step 4: Simplify right side
    669,517.03x = 221,160,760,348.53
  5. Step 5: Solve for x
    x = 221,160,760,348.53/669,517.03
  6. Step 6: Final answer
    x = 330,328.80

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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.