Home / 1,161,992.55-1,603,506.92-645,778.65

Finding the Fourth Proportional to 1,161,992.55, 1,603,506.92 and 645,778.65

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Solution

The fourth proportional to 1,161,992.55, 1,603,506.92 and 645,778.65 is: 891,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,992.55 : 1,603,506.92 = 645,778.65 : x
  2. Step 2: Convert to fraction form
    1,161,992.55/1,603,506.92 = 645,778.65/x
  3. Step 3: Cross multiply
    1,161,992.55x = 1,603,506.92 × 645,778.65
  4. Step 4: Simplify right side
    1,161,992.55x = 1,035,510,530,834.36
  5. Step 5: Solve for x
    x = 1,035,510,530,834.36/1,161,992.55
  6. Step 6: Final answer
    x = 891,150.75

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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.