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Finding the Fourth Proportional to 655,761.21, 904,996.76 and 365,392

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Solution

The fourth proportional to 655,761.21, 904,996.76 and 365,392 is: 504,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,761.21 : 904,996.76 = 365,392 : x
  2. Step 2: Convert to fraction form
    655,761.21/904,996.76 = 365,392/x
  3. Step 3: Cross multiply
    655,761.21x = 904,996.76 × 365,392
  4. Step 4: Simplify right side
    655,761.21x = 330,678,576,129.92
  5. Step 5: Solve for x
    x = 330,678,576,129.92/655,761.21
  6. Step 6: Final answer
    x = 504,266.75

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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.