Home / 1,439,822.06-1,986,942.62-786,448.49

Finding the Fourth Proportional to 1,439,822.06, 1,986,942.62 and 786,448.49

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Solution

The fourth proportional to 1,439,822.06, 1,986,942.62 and 786,448.49 is: 1,085,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,822.06 : 1,986,942.62 = 786,448.49 : x
  2. Step 2: Convert to fraction form
    1,439,822.06/1,986,942.62 = 786,448.49/x
  3. Step 3: Cross multiply
    1,439,822.06x = 1,986,942.62 × 786,448.49
  4. Step 4: Simplify right side
    1,439,822.06x = 1,562,628,009,348.69
  5. Step 5: Solve for x
    x = 1,562,628,009,348.69/1,439,822.06
  6. Step 6: Final answer
    x = 1,085,292.45

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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.