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Finding the Fourth Proportional to 655.09, 896.01 and 645.37

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Solution

The fourth proportional to 655.09, 896.01 and 645.37 is: 882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.09 : 896.01 = 645.37 : x
  2. Step 2: Convert to fraction form
    655.09/896.01 = 645.37/x
  3. Step 3: Cross multiply
    655.09x = 896.01 × 645.37
  4. Step 4: Simplify right side
    655.09x = 578,256.94
  5. Step 5: Solve for x
    x = 578,256.94/655.09
  6. Step 6: Final answer
    x = 882.72

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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.