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Finding the Fourth Proportional to 497.70, 744.84 and 315.18

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Solution

The fourth proportional to 497.70, 744.84 and 315.18 is: 471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.70 : 744.84 = 315.18 : x
  2. Step 2: Convert to fraction form
    497.70/744.84 = 315.18/x
  3. Step 3: Cross multiply
    497.70x = 744.84 × 315.18
  4. Step 4: Simplify right side
    497.70x = 234,758.67
  5. Step 5: Solve for x
    x = 234,758.67/497.70
  6. Step 6: Final answer
    x = 471.69

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