Home / 669,980.44-1,005,036.27-220,517.92

Finding the Fourth Proportional to 669,980.44, 1,005,036.27 and 220,517.92

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Solution

The fourth proportional to 669,980.44, 1,005,036.27 and 220,517.92 is: 330,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,980.44 : 1,005,036.27 = 220,517.92 : x
  2. Step 2: Convert to fraction form
    669,980.44/1,005,036.27 = 220,517.92/x
  3. Step 3: Cross multiply
    669,980.44x = 1,005,036.27 × 220,517.92
  4. Step 4: Simplify right side
    669,980.44x = 221,628,507,784.96
  5. Step 5: Solve for x
    x = 221,628,507,784.96/669,980.44
  6. Step 6: Final answer
    x = 330,798.47

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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.