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Finding the Fourth Proportional to 681,563.04, 940,563.24 and 375,650.28

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Solution

The fourth proportional to 681,563.04, 940,563.24 and 375,650.28 is: 518,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,563.04 : 940,563.24 = 375,650.28 : x
  2. Step 2: Convert to fraction form
    681,563.04/940,563.24 = 375,650.28/x
  3. Step 3: Cross multiply
    681,563.04x = 940,563.24 × 375,650.28
  4. Step 4: Simplify right side
    681,563.04x = 353,322,844,463.71
  5. Step 5: Solve for x
    x = 353,322,844,463.71/681,563.04
  6. Step 6: Final answer
    x = 518,400.83

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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.