Home / 1,985,716.77-2,741,240.93-1,222,424.61

Finding the Fourth Proportional to 1,985,716.77, 2,741,240.93 and 1,222,424.61

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Solution

The fourth proportional to 1,985,716.77, 2,741,240.93 and 1,222,424.61 is: 1,687,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,716.77 : 2,741,240.93 = 1,222,424.61 : x
  2. Step 2: Convert to fraction form
    1,985,716.77/2,741,240.93 = 1,222,424.61/x
  3. Step 3: Cross multiply
    1,985,716.77x = 2,741,240.93 × 1,222,424.61
  4. Step 4: Simplify right side
    1,985,716.77x = 3,350,960,368,659.16
  5. Step 5: Solve for x
    x = 3,350,960,368,659.16/1,985,716.77
  6. Step 6: Final answer
    x = 1,687,531.89

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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.