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Finding the Fourth Proportional to 736.65, 1,015.51 and 514.92

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Solution

The fourth proportional to 736.65, 1,015.51 and 514.92 is: 709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.65 : 1,015.51 = 514.92 : x
  2. Step 2: Convert to fraction form
    736.65/1,015.51 = 514.92/x
  3. Step 3: Cross multiply
    736.65x = 1,015.51 × 514.92
  4. Step 4: Simplify right side
    736.65x = 522,906.41
  5. Step 5: Solve for x
    x = 522,906.41/736.65
  6. Step 6: Final answer
    x = 709.84

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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.