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Finding the Fourth Proportional to 655,571.52, 904,688.34 and 383,691.18

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Solution

The fourth proportional to 655,571.52, 904,688.34 and 383,691.18 is: 529,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,571.52 : 904,688.34 = 383,691.18 : x
  2. Step 2: Convert to fraction form
    655,571.52/904,688.34 = 383,691.18/x
  3. Step 3: Cross multiply
    655,571.52x = 904,688.34 × 383,691.18
  4. Step 4: Simplify right side
    655,571.52x = 347,120,936,706.84
  5. Step 5: Solve for x
    x = 347,120,936,706.84/655,571.52
  6. Step 6: Final answer
    x = 529,493.62

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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.