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Finding the Fourth Proportional to 501.15, 749.73 and 433.41

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Solution

The fourth proportional to 501.15, 749.73 and 433.41 is: 648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.15 : 749.73 = 433.41 : x
  2. Step 2: Convert to fraction form
    501.15/749.73 = 433.41/x
  3. Step 3: Cross multiply
    501.15x = 749.73 × 433.41
  4. Step 4: Simplify right side
    501.15x = 324,940.48
  5. Step 5: Solve for x
    x = 324,940.48/501.15
  6. Step 6: Final answer
    x = 648.39

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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.