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Finding the Fourth Proportional to 540,848.52, 811,274.17 and 221,000.40

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Solution

The fourth proportional to 540,848.52, 811,274.17 and 221,000.40 is: 331,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,848.52 : 811,274.17 = 221,000.40 : x
  2. Step 2: Convert to fraction form
    540,848.52/811,274.17 = 221,000.40/x
  3. Step 3: Cross multiply
    540,848.52x = 811,274.17 × 221,000.40
  4. Step 4: Simplify right side
    540,848.52x = 179,291,916,079.67
  5. Step 5: Solve for x
    x = 179,291,916,079.67/540,848.52
  6. Step 6: Final answer
    x = 331,501.17

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