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Finding the Fourth Proportional to 914.11, 1,368.33 and 739.32

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Solution

The fourth proportional to 914.11, 1,368.33 and 739.32 is: 1,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.11 : 1,368.33 = 739.32 : x
  2. Step 2: Convert to fraction form
    914.11/1,368.33 = 739.32/x
  3. Step 3: Cross multiply
    914.11x = 1,368.33 × 739.32
  4. Step 4: Simplify right side
    914.11x = 1,011,625.83
  5. Step 5: Solve for x
    x = 1,011,625.83/914.11
  6. Step 6: Final answer
    x = 1,106.68

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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.