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Finding the Fourth Proportional to 793.58, 1,189.19 and 707.08

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Solution

The fourth proportional to 793.58, 1,189.19 and 707.08 is: 1,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.58 : 1,189.19 = 707.08 : x
  2. Step 2: Convert to fraction form
    793.58/1,189.19 = 707.08/x
  3. Step 3: Cross multiply
    793.58x = 1,189.19 × 707.08
  4. Step 4: Simplify right side
    793.58x = 840,846.52
  5. Step 5: Solve for x
    x = 840,846.52/793.58
  6. Step 6: Final answer
    x = 1,059.57

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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.