Home / 669,213.28-1,003,607.04-219,829.88

Finding the Fourth Proportional to 669,213.28, 1,003,607.04 and 219,829.88

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Solution

The fourth proportional to 669,213.28, 1,003,607.04 and 219,829.88 is: 329,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,213.28 : 1,003,607.04 = 219,829.88 : x
  2. Step 2: Convert to fraction form
    669,213.28/1,003,607.04 = 219,829.88/x
  3. Step 3: Cross multiply
    669,213.28x = 1,003,607.04 × 219,829.88
  4. Step 4: Simplify right side
    669,213.28x = 220,622,815,170.36
  5. Step 5: Solve for x
    x = 220,622,815,170.36/669,213.28
  6. Step 6: Final answer
    x = 329,674.89

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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.