Home / 1,321,437.65-1,982,039.83-479,996.69

Finding the Fourth Proportional to 1,321,437.65, 1,982,039.83 and 479,996.69

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Solution

The fourth proportional to 1,321,437.65, 1,982,039.83 and 479,996.69 is: 719,952.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,437.65 : 1,982,039.83 = 479,996.69 : x
  2. Step 2: Convert to fraction form
    1,321,437.65/1,982,039.83 = 479,996.69/x
  3. Step 3: Cross multiply
    1,321,437.65x = 1,982,039.83 × 479,996.69
  4. Step 4: Simplify right side
    1,321,437.65x = 951,372,546,737.97
  5. Step 5: Solve for x
    x = 951,372,546,737.97/1,321,437.65
  6. Step 6: Final answer
    x = 719,952.66

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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.