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Finding the Fourth Proportional to 1,203.38, 1,800.50 and 734.98

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Solution

The fourth proportional to 1,203.38, 1,800.50 and 734.98 is: 1,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.38 : 1,800.50 = 734.98 : x
  2. Step 2: Convert to fraction form
    1,203.38/1,800.50 = 734.98/x
  3. Step 3: Cross multiply
    1,203.38x = 1,800.50 × 734.98
  4. Step 4: Simplify right side
    1,203.38x = 1,323,331.49
  5. Step 5: Solve for x
    x = 1,323,331.49/1,203.38
  6. Step 6: Final answer
    x = 1,099.68

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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.