Home / 957,198.48-1,320,916.79-521,619.61

Finding the Fourth Proportional to 957,198.48, 1,320,916.79 and 521,619.61

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Solution

The fourth proportional to 957,198.48, 1,320,916.79 and 521,619.61 is: 719,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,198.48 : 1,320,916.79 = 521,619.61 : x
  2. Step 2: Convert to fraction form
    957,198.48/1,320,916.79 = 521,619.61/x
  3. Step 3: Cross multiply
    957,198.48x = 1,320,916.79 × 521,619.61
  4. Step 4: Simplify right side
    957,198.48x = 689,016,100,842.25
  5. Step 5: Solve for x
    x = 689,016,100,842.25/957,198.48
  6. Step 6: Final answer
    x = 719,825.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.