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Finding the Fourth Proportional to 681,563.80, 940,519.65 and 375,639.27

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Solution

The fourth proportional to 681,563.80, 940,519.65 and 375,639.27 is: 518,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,563.80 : 940,519.65 = 375,639.27 : x
  2. Step 2: Convert to fraction form
    681,563.80/940,519.65 = 375,639.27/x
  3. Step 3: Cross multiply
    681,563.80x = 940,519.65 × 375,639.27
  4. Step 4: Simplify right side
    681,563.80x = 353,296,114,746.66
  5. Step 5: Solve for x
    x = 353,296,114,746.66/681,563.80
  6. Step 6: Final answer
    x = 518,361.03

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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.