Home / 1,145,993.85-1,581,520.71-636,696.22

Finding the Fourth Proportional to 1,145,993.85, 1,581,520.71 and 636,696.22

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Solution

The fourth proportional to 1,145,993.85, 1,581,520.71 and 636,696.22 is: 878,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,993.85 : 1,581,520.71 = 636,696.22 : x
  2. Step 2: Convert to fraction form
    1,145,993.85/1,581,520.71 = 636,696.22/x
  3. Step 3: Cross multiply
    1,145,993.85x = 1,581,520.71 × 636,696.22
  4. Step 4: Simplify right side
    1,145,993.85x = 1,006,948,257,908.72
  5. Step 5: Solve for x
    x = 1,006,948,257,908.72/1,145,993.85
  6. Step 6: Final answer
    x = 878,668.12

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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.