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Finding the Fourth Proportional to 655,141.44, 904,021.92 and 368,760

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Solution

The fourth proportional to 655,141.44, 904,021.92 and 368,760 is: 508,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,141.44 : 904,021.92 = 368,760 : x
  2. Step 2: Convert to fraction form
    655,141.44/904,021.92 = 368,760/x
  3. Step 3: Cross multiply
    655,141.44x = 904,021.92 × 368,760
  4. Step 4: Simplify right side
    655,141.44x = 333,367,123,219.20
  5. Step 5: Solve for x
    x = 333,367,123,219.20/655,141.44
  6. Step 6: Final answer
    x = 508,847.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.