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Finding the Fourth Proportional to 1,655,304, 2,284,321.92 and 939,912

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Solution

The fourth proportional to 1,655,304, 2,284,321.92 and 939,912 is: 1,297,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655,304 : 2,284,321.92 = 939,912 : x
  2. Step 2: Convert to fraction form
    1,655,304/2,284,321.92 = 939,912/x
  3. Step 3: Cross multiply
    1,655,304x = 2,284,321.92 × 939,912
  4. Step 4: Simplify right side
    1,655,304x = 2,147,061,584,471.04
  5. Step 5: Solve for x
    x = 2,147,061,584,471.04/1,655,304
  6. Step 6: Final answer
    x = 1,297,079.92

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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.