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Finding the Fourth Proportional to 707.62, 970.07 and 696.28

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Solution

The fourth proportional to 707.62, 970.07 and 696.28 is: 954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.62 : 970.07 = 696.28 : x
  2. Step 2: Convert to fraction form
    707.62/970.07 = 696.28/x
  3. Step 3: Cross multiply
    707.62x = 970.07 × 696.28
  4. Step 4: Simplify right side
    707.62x = 675,440.34
  5. Step 5: Solve for x
    x = 675,440.34/707.62
  6. Step 6: Final answer
    x = 954.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.