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Finding the Fourth Proportional to 641.19, 956.80 and 568.29

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Solution

The fourth proportional to 641.19, 956.80 and 568.29 is: 848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.19 : 956.80 = 568.29 : x
  2. Step 2: Convert to fraction form
    641.19/956.80 = 568.29/x
  3. Step 3: Cross multiply
    641.19x = 956.80 × 568.29
  4. Step 4: Simplify right side
    641.19x = 543,738.45
  5. Step 5: Solve for x
    x = 543,738.45/641.19
  6. Step 6: Final answer
    x = 848.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.