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Finding the Fourth Proportional to 695.75, 957.40 and 568.58

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Solution

The fourth proportional to 695.75, 957.40 and 568.58 is: 782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.75 : 957.40 = 568.58 : x
  2. Step 2: Convert to fraction form
    695.75/957.40 = 568.58/x
  3. Step 3: Cross multiply
    695.75x = 957.40 × 568.58
  4. Step 4: Simplify right side
    695.75x = 544,358.49
  5. Step 5: Solve for x
    x = 544,358.49/695.75
  6. Step 6: Final answer
    x = 782.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.