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Finding the Fourth Proportional to 631.99, 948.12 and 624.03

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Solution

The fourth proportional to 631.99, 948.12 and 624.03 is: 936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.99 : 948.12 = 624.03 : x
  2. Step 2: Convert to fraction form
    631.99/948.12 = 624.03/x
  3. Step 3: Cross multiply
    631.99x = 948.12 × 624.03
  4. Step 4: Simplify right side
    631.99x = 591,655.32
  5. Step 5: Solve for x
    x = 591,655.32/631.99
  6. Step 6: Final answer
    x = 936.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.