Home / 827,866.38-1,241,559.72-322,314.69

Finding the Fourth Proportional to 827,866.38, 1,241,559.72 and 322,314.69

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Solution

The fourth proportional to 827,866.38, 1,241,559.72 and 322,314.69 is: 483,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,866.38 : 1,241,559.72 = 322,314.69 : x
  2. Step 2: Convert to fraction form
    827,866.38/1,241,559.72 = 322,314.69/x
  3. Step 3: Cross multiply
    827,866.38x = 1,241,559.72 × 322,314.69
  4. Step 4: Simplify right side
    827,866.38x = 400,172,936,268.29
  5. Step 5: Solve for x
    x = 400,172,936,268.29/827,866.38
  6. Step 6: Final answer
    x = 483,378.65

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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.