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Finding the Fourth Proportional to 688,185.50, 949,695.99 and 386,385.98

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Solution

The fourth proportional to 688,185.50, 949,695.99 and 386,385.98 is: 533,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,185.50 : 949,695.99 = 386,385.98 : x
  2. Step 2: Convert to fraction form
    688,185.50/949,695.99 = 386,385.98/x
  3. Step 3: Cross multiply
    688,185.50x = 949,695.99 × 386,385.98
  4. Step 4: Simplify right side
    688,185.50x = 366,949,215,798.22
  5. Step 5: Solve for x
    x = 366,949,215,798.22/688,185.50
  6. Step 6: Final answer
    x = 533,212.65

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