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Finding the Fourth Proportional to 693, 957.70 and 568.46

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Solution

The fourth proportional to 693, 957.70 and 568.46 is: 785.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    693 : 957.70 = 568.46 : x
  2. Step 2: Convert to fraction form
    693/957.70 = 568.46/x
  3. Step 3: Cross multiply
    693x = 957.70 × 568.46
  4. Step 4: Simplify right side
    693x = 544,414.14
  5. Step 5: Solve for x
    x = 544,414.14/693
  6. Step 6: Final answer
    x = 785.59

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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.