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Finding the Fourth Proportional to 352,407.40, 528,659.70 and 127,713.40

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Solution

The fourth proportional to 352,407.40, 528,659.70 and 127,713.40 is: 191,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,407.40 : 528,659.70 = 127,713.40 : x
  2. Step 2: Convert to fraction form
    352,407.40/528,659.70 = 127,713.40/x
  3. Step 3: Cross multiply
    352,407.40x = 528,659.70 × 127,713.40
  4. Step 4: Simplify right side
    352,407.40x = 67,516,927,729.98
  5. Step 5: Solve for x
    x = 67,516,927,729.98/352,407.40
  6. Step 6: Final answer
    x = 191,587.71

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