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Finding the Fourth Proportional to 641,268.68, 884,693.57 and 369,190.61

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Solution

The fourth proportional to 641,268.68, 884,693.57 and 369,190.61 is: 509,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,268.68 : 884,693.57 = 369,190.61 : x
  2. Step 2: Convert to fraction form
    641,268.68/884,693.57 = 369,190.61/x
  3. Step 3: Cross multiply
    641,268.68x = 884,693.57 × 369,190.61
  4. Step 4: Simplify right side
    641,268.68x = 326,620,558,141.80
  5. Step 5: Solve for x
    x = 326,620,558,141.80/641,268.68
  6. Step 6: Final answer
    x = 509,334.96

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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.