Home / 667,718.40-1,001,278.98-479,942.04

Finding the Fourth Proportional to 667,718.40, 1,001,278.98 and 479,942.04

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Solution

The fourth proportional to 667,718.40, 1,001,278.98 and 479,942.04 is: 719,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,718.40 : 1,001,278.98 = 479,942.04 : x
  2. Step 2: Convert to fraction form
    667,718.40/1,001,278.98 = 479,942.04/x
  3. Step 3: Cross multiply
    667,718.40x = 1,001,278.98 × 479,942.04
  4. Step 4: Simplify right side
    667,718.40x = 480,555,876,270.32
  5. Step 5: Solve for x
    x = 480,555,876,270.32/667,718.40
  6. Step 6: Final answer
    x = 719,698.42

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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.