Home / 1,144,660.80-1,717,768.80-639,220.80

Finding the Fourth Proportional to 1,144,660.80, 1,717,768.80 and 639,220.80

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Solution

The fourth proportional to 1,144,660.80, 1,717,768.80 and 639,220.80 is: 959,265.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,660.80 : 1,717,768.80 = 639,220.80 : x
  2. Step 2: Convert to fraction form
    1,144,660.80/1,717,768.80 = 639,220.80/x
  3. Step 3: Cross multiply
    1,144,660.80x = 1,717,768.80 × 639,220.80
  4. Step 4: Simplify right side
    1,144,660.80x = 1,098,033,546,551.04
  5. Step 5: Solve for x
    x = 1,098,033,546,551.04/1,144,660.80
  6. Step 6: Final answer
    x = 959,265.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.