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Finding the Fourth Proportional to 795.62, 1,193.09 and 430.31

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Solution

The fourth proportional to 795.62, 1,193.09 and 430.31 is: 645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.62 : 1,193.09 = 430.31 : x
  2. Step 2: Convert to fraction form
    795.62/1,193.09 = 430.31/x
  3. Step 3: Cross multiply
    795.62x = 1,193.09 × 430.31
  4. Step 4: Simplify right side
    795.62x = 513,390.44
  5. Step 5: Solve for x
    x = 513,390.44/795.62
  6. Step 6: Final answer
    x = 645.27

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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.