Home / 669,304.96-1,004,080.64-220,051.20

Finding the Fourth Proportional to 669,304.96, 1,004,080.64 and 220,051.20

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Solution

The fourth proportional to 669,304.96, 1,004,080.64 and 220,051.20 is: 330,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,304.96 : 1,004,080.64 = 220,051.20 : x
  2. Step 2: Convert to fraction form
    669,304.96/1,004,080.64 = 220,051.20/x
  3. Step 3: Cross multiply
    669,304.96x = 1,004,080.64 × 220,051.20
  4. Step 4: Simplify right side
    669,304.96x = 220,949,149,728.77
  5. Step 5: Solve for x
    x = 220,949,149,728.77/669,304.96
  6. Step 6: Final answer
    x = 330,117.31

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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.