Home / 1,151,556.39-1,589,149.94-642,291.57

Finding the Fourth Proportional to 1,151,556.39, 1,589,149.94 and 642,291.57

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Solution

The fourth proportional to 1,151,556.39, 1,589,149.94 and 642,291.57 is: 886,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,556.39 : 1,589,149.94 = 642,291.57 : x
  2. Step 2: Convert to fraction form
    1,151,556.39/1,589,149.94 = 642,291.57/x
  3. Step 3: Cross multiply
    1,151,556.39x = 1,589,149.94 × 642,291.57
  4. Step 4: Simplify right side
    1,151,556.39x = 1,020,697,606,716.55
  5. Step 5: Solve for x
    x = 1,020,697,606,716.55/1,151,556.39
  6. Step 6: Final answer
    x = 886,363.55

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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.