Home / 1,638,132.72-2,261,515.32-1,131,560.88

Finding the Fourth Proportional to 1,638,132.72, 2,261,515.32 and 1,131,560.88

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Solution

The fourth proportional to 1,638,132.72, 2,261,515.32 and 1,131,560.88 is: 1,562,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,132.72 : 2,261,515.32 = 1,131,560.88 : x
  2. Step 2: Convert to fraction form
    1,638,132.72/2,261,515.32 = 1,131,560.88/x
  3. Step 3: Cross multiply
    1,638,132.72x = 2,261,515.32 × 1,131,560.88
  4. Step 4: Simplify right side
    1,638,132.72x = 2,559,042,265,632.68
  5. Step 5: Solve for x
    x = 2,559,042,265,632.68/1,638,132.72
  6. Step 6: Final answer
    x = 1,562,170.29

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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.