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Finding the Fourth Proportional to 658,664.64, 908,957.03 and 356,858.64

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Solution

The fourth proportional to 658,664.64, 908,957.03 and 356,858.64 is: 492,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,664.64 : 908,957.03 = 356,858.64 : x
  2. Step 2: Convert to fraction form
    658,664.64/908,957.03 = 356,858.64/x
  3. Step 3: Cross multiply
    658,664.64x = 908,957.03 × 356,858.64
  4. Step 4: Simplify right side
    658,664.64x = 324,369,167,759.95
  5. Step 5: Solve for x
    x = 324,369,167,759.95/658,664.64
  6. Step 6: Final answer
    x = 492,464.83

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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.