Home / 1,292,019.12-1,782,986.39-719,194.61

Finding the Fourth Proportional to 1,292,019.12, 1,782,986.39 and 719,194.61

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Solution

The fourth proportional to 1,292,019.12, 1,782,986.39 and 719,194.61 is: 992,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,019.12 : 1,782,986.39 = 719,194.61 : x
  2. Step 2: Convert to fraction form
    1,292,019.12/1,782,986.39 = 719,194.61/x
  3. Step 3: Cross multiply
    1,292,019.12x = 1,782,986.39 × 719,194.61
  4. Step 4: Simplify right side
    1,292,019.12x = 1,282,314,201,391.36
  5. Step 5: Solve for x
    x = 1,282,314,201,391.36/1,292,019.12
  6. Step 6: Final answer
    x = 992,488.56

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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.