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Finding the Fourth Proportional to 641.05, 956.54 and 601.86

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Solution

The fourth proportional to 641.05, 956.54 and 601.86 is: 898.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.05 : 956.54 = 601.86 : x
  2. Step 2: Convert to fraction form
    641.05/956.54 = 601.86/x
  3. Step 3: Cross multiply
    641.05x = 956.54 × 601.86
  4. Step 4: Simplify right side
    641.05x = 575,705.40
  5. Step 5: Solve for x
    x = 575,705.40/641.05
  6. Step 6: Final answer
    x = 898.07

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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.