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Finding the Fourth Proportional to 387,908.83, 580,618.69 and 207,543.07

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Solution

The fourth proportional to 387,908.83, 580,618.69 and 207,543.07 is: 310,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,908.83 : 580,618.69 = 207,543.07 : x
  2. Step 2: Convert to fraction form
    387,908.83/580,618.69 = 207,543.07/x
  3. Step 3: Cross multiply
    387,908.83x = 580,618.69 × 207,543.07
  4. Step 4: Simplify right side
    387,908.83x = 120,503,385,421.98
  5. Step 5: Solve for x
    x = 120,503,385,421.98/387,908.83
  6. Step 6: Final answer
    x = 310,648.73

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