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Finding the Fourth Proportional to 907.06, 1,361.19 and 537.19

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Solution

The fourth proportional to 907.06, 1,361.19 and 537.19 is: 806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.06 : 1,361.19 = 537.19 : x
  2. Step 2: Convert to fraction form
    907.06/1,361.19 = 537.19/x
  3. Step 3: Cross multiply
    907.06x = 1,361.19 × 537.19
  4. Step 4: Simplify right side
    907.06x = 731,217.66
  5. Step 5: Solve for x
    x = 731,217.66/907.06
  6. Step 6: Final answer
    x = 806.14

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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.