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Finding the Fourth Proportional to 734.05, 1,012.66 and 537.63

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Solution

The fourth proportional to 734.05, 1,012.66 and 537.63 is: 741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.05 : 1,012.66 = 537.63 : x
  2. Step 2: Convert to fraction form
    734.05/1,012.66 = 537.63/x
  3. Step 3: Cross multiply
    734.05x = 1,012.66 × 537.63
  4. Step 4: Simplify right side
    734.05x = 544,436.40
  5. Step 5: Solve for x
    x = 544,436.40/734.05
  6. Step 6: Final answer
    x = 741.69

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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.