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Finding the Fourth Proportional to 655,468.44, 904,512.04 and 368,979

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Solution

The fourth proportional to 655,468.44, 904,512.04 and 368,979 is: 509,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,468.44 : 904,512.04 = 368,979 : x
  2. Step 2: Convert to fraction form
    655,468.44/904,512.04 = 368,979/x
  3. Step 3: Cross multiply
    655,468.44x = 904,512.04 × 368,979
  4. Step 4: Simplify right side
    655,468.44x = 333,745,948,007.16
  5. Step 5: Solve for x
    x = 333,745,948,007.16/655,468.44
  6. Step 6: Final answer
    x = 509,171.65

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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.