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Finding the Fourth Proportional to 613,686.47, 920,669.15 and 187,260.44

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Solution

The fourth proportional to 613,686.47, 920,669.15 and 187,260.44 is: 280,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,686.47 : 920,669.15 = 187,260.44 : x
  2. Step 2: Convert to fraction form
    613,686.47/920,669.15 = 187,260.44/x
  3. Step 3: Cross multiply
    613,686.47x = 920,669.15 × 187,260.44
  4. Step 4: Simplify right side
    613,686.47x = 172,404,905,988.23
  5. Step 5: Solve for x
    x = 172,404,905,988.23/613,686.47
  6. Step 6: Final answer
    x = 280,933.21

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