Home / 667,984.68-1,001,998.80-218,731.32

Finding the Fourth Proportional to 667,984.68, 1,001,998.80 and 218,731.32

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Solution

The fourth proportional to 667,984.68, 1,001,998.80 and 218,731.32 is: 328,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,984.68 : 1,001,998.80 = 218,731.32 : x
  2. Step 2: Convert to fraction form
    667,984.68/1,001,998.80 = 218,731.32/x
  3. Step 3: Cross multiply
    667,984.68x = 1,001,998.80 × 218,731.32
  4. Step 4: Simplify right side
    667,984.68x = 219,168,520,162.42
  5. Step 5: Solve for x
    x = 219,168,520,162.42/667,984.68
  6. Step 6: Final answer
    x = 328,104.11

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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.