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Finding the Fourth Proportional to 389,473.75, 537,473.78 and 210,625.75

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Solution

The fourth proportional to 389,473.75, 537,473.78 and 210,625.75 is: 290,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,473.75 : 537,473.78 = 210,625.75 : x
  2. Step 2: Convert to fraction form
    389,473.75/537,473.78 = 210,625.75/x
  3. Step 3: Cross multiply
    389,473.75x = 537,473.78 × 210,625.75
  4. Step 4: Simplify right side
    389,473.75x = 113,205,818,017.84
  5. Step 5: Solve for x
    x = 113,205,818,017.84/389,473.75
  6. Step 6: Final answer
    x = 290,663.54

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