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Finding the Fourth Proportional to 655,268.78, 904,300.02 and 368,807.42

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Solution

The fourth proportional to 655,268.78, 904,300.02 and 368,807.42 is: 508,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,268.78 : 904,300.02 = 368,807.42 : x
  2. Step 2: Convert to fraction form
    655,268.78/904,300.02 = 368,807.42/x
  3. Step 3: Cross multiply
    655,268.78x = 904,300.02 × 368,807.42
  4. Step 4: Simplify right side
    655,268.78x = 333,512,557,282.15
  5. Step 5: Solve for x
    x = 333,512,557,282.15/655,268.78
  6. Step 6: Final answer
    x = 508,970.62

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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.