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Finding the Fourth Proportional to 707.13, 1,059.62 and 295.79

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Solution

The fourth proportional to 707.13, 1,059.62 and 295.79 is: 443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.13 : 1,059.62 = 295.79 : x
  2. Step 2: Convert to fraction form
    707.13/1,059.62 = 295.79/x
  3. Step 3: Cross multiply
    707.13x = 1,059.62 × 295.79
  4. Step 4: Simplify right side
    707.13x = 313,418.22
  5. Step 5: Solve for x
    x = 313,418.22/707.13
  6. Step 6: Final answer
    x = 443.23

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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.