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Finding the Fourth Proportional to 374,691.18, 517,135.05 and 278,533.74

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Solution

The fourth proportional to 374,691.18, 517,135.05 and 278,533.74 is: 384,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,691.18 : 517,135.05 = 278,533.74 : x
  2. Step 2: Convert to fraction form
    374,691.18/517,135.05 = 278,533.74/x
  3. Step 3: Cross multiply
    374,691.18x = 517,135.05 × 278,533.74
  4. Step 4: Simplify right side
    374,691.18x = 144,039,559,561.59
  5. Step 5: Solve for x
    x = 144,039,559,561.59/374,691.18
  6. Step 6: Final answer
    x = 384,422.07

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