Home / 715,382.10-987,282.22-409,554.41

Finding the Fourth Proportional to 715,382.10, 987,282.22 and 409,554.41

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Solution

The fourth proportional to 715,382.10, 987,282.22 and 409,554.41 is: 565,216.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,382.10 : 987,282.22 = 409,554.41 : x
  2. Step 2: Convert to fraction form
    715,382.10/987,282.22 = 409,554.41/x
  3. Step 3: Cross multiply
    715,382.10x = 987,282.22 × 409,554.41
  4. Step 4: Simplify right side
    715,382.10x = 404,345,787,115.59
  5. Step 5: Solve for x
    x = 404,345,787,115.59/715,382.10
  6. Step 6: Final answer
    x = 565,216.53

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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.