Home / 913,827.38-1,371,021.32-408,813.44

Finding the Fourth Proportional to 913,827.38, 1,371,021.32 and 408,813.44

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Solution

The fourth proportional to 913,827.38, 1,371,021.32 and 408,813.44 is: 613,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,827.38 : 1,371,021.32 = 408,813.44 : x
  2. Step 2: Convert to fraction form
    913,827.38/1,371,021.32 = 408,813.44/x
  3. Step 3: Cross multiply
    913,827.38x = 1,371,021.32 × 408,813.44
  4. Step 4: Simplify right side
    913,827.38x = 560,491,933,243.37
  5. Step 5: Solve for x
    x = 560,491,933,243.37/913,827.38
  6. Step 6: Final answer
    x = 613,345.53

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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.