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Finding the Fourth Proportional to 734.99, 1,014.28 and 403.43

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Solution

The fourth proportional to 734.99, 1,014.28 and 403.43 is: 556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.99 : 1,014.28 = 403.43 : x
  2. Step 2: Convert to fraction form
    734.99/1,014.28 = 403.43/x
  3. Step 3: Cross multiply
    734.99x = 1,014.28 × 403.43
  4. Step 4: Simplify right side
    734.99x = 409,190.98
  5. Step 5: Solve for x
    x = 409,190.98/734.99
  6. Step 6: Final answer
    x = 556.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.