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Finding the Fourth Proportional to 655.01, 897.36 and 630.39

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Solution

The fourth proportional to 655.01, 897.36 and 630.39 is: 863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.01 : 897.36 = 630.39 : x
  2. Step 2: Convert to fraction form
    655.01/897.36 = 630.39/x
  3. Step 3: Cross multiply
    655.01x = 897.36 × 630.39
  4. Step 4: Simplify right side
    655.01x = 565,686.77
  5. Step 5: Solve for x
    x = 565,686.77/655.01
  6. Step 6: Final answer
    x = 863.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.