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Finding the Fourth Proportional to 633.69, 943.47 and 624.58

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Solution

The fourth proportional to 633.69, 943.47 and 624.58 is: 929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.69 : 943.47 = 624.58 : x
  2. Step 2: Convert to fraction form
    633.69/943.47 = 624.58/x
  3. Step 3: Cross multiply
    633.69x = 943.47 × 624.58
  4. Step 4: Simplify right side
    633.69x = 589,270.13
  5. Step 5: Solve for x
    x = 589,270.13/633.69
  6. Step 6: Final answer
    x = 929.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.