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Finding the Fourth Proportional to 681,359.53, 940,263.75 and 375,464.14

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Solution

The fourth proportional to 681,359.53, 940,263.75 and 375,464.14 is: 518,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,359.53 : 940,263.75 = 375,464.14 : x
  2. Step 2: Convert to fraction form
    681,359.53/940,263.75 = 375,464.14/x
  3. Step 3: Cross multiply
    681,359.53x = 940,263.75 × 375,464.14
  4. Step 4: Simplify right side
    681,359.53x = 353,035,320,266.93
  5. Step 5: Solve for x
    x = 353,035,320,266.93/681,359.53
  6. Step 6: Final answer
    x = 518,133.68

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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.