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Finding the Fourth Proportional to 502.76, 693.47 and 384.75

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Solution

The fourth proportional to 502.76, 693.47 and 384.75 is: 530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.76 : 693.47 = 384.75 : x
  2. Step 2: Convert to fraction form
    502.76/693.47 = 384.75/x
  3. Step 3: Cross multiply
    502.76x = 693.47 × 384.75
  4. Step 4: Simplify right side
    502.76x = 266,812.58
  5. Step 5: Solve for x
    x = 266,812.58/502.76
  6. Step 6: Final answer
    x = 530.70

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