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Finding the Fourth Proportional to 641.48, 955.60 and 601.64

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Solution

The fourth proportional to 641.48, 955.60 and 601.64 is: 896.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.48 : 955.60 = 601.64 : x
  2. Step 2: Convert to fraction form
    641.48/955.60 = 601.64/x
  3. Step 3: Cross multiply
    641.48x = 955.60 × 601.64
  4. Step 4: Simplify right side
    641.48x = 574,927.18
  5. Step 5: Solve for x
    x = 574,927.18/641.48
  6. Step 6: Final answer
    x = 896.25

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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.