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Finding the Fourth Proportional to 502,853.09, 693,962.18 and 311,927.99

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Solution

The fourth proportional to 502,853.09, 693,962.18 and 311,927.99 is: 430,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,853.09 : 693,962.18 = 311,927.99 : x
  2. Step 2: Convert to fraction form
    502,853.09/693,962.18 = 311,927.99/x
  3. Step 3: Cross multiply
    502,853.09x = 693,962.18 × 311,927.99
  4. Step 4: Simplify right side
    502,853.09x = 216,466,222,913.97
  5. Step 5: Solve for x
    x = 216,466,222,913.97/502,853.09
  6. Step 6: Final answer
    x = 430,476.08

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