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Finding the Fourth Proportional to 643,090.68, 887,260.68 and 371,122.56

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Solution

The fourth proportional to 643,090.68, 887,260.68 and 371,122.56 is: 512,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,090.68 : 887,260.68 = 371,122.56 : x
  2. Step 2: Convert to fraction form
    643,090.68/887,260.68 = 371,122.56/x
  3. Step 3: Cross multiply
    643,090.68x = 887,260.68 × 371,122.56
  4. Step 4: Simplify right side
    643,090.68x = 329,282,454,948.94
  5. Step 5: Solve for x
    x = 329,282,454,948.94/643,090.68
  6. Step 6: Final answer
    x = 512,031.14

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