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Finding the Fourth Proportional to 636,548.46, 878,447.58 and 364,640.13

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Solution

The fourth proportional to 636,548.46, 878,447.58 and 364,640.13 is: 503,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,548.46 : 878,447.58 = 364,640.13 : x
  2. Step 2: Convert to fraction form
    636,548.46/878,447.58 = 364,640.13/x
  3. Step 3: Cross multiply
    636,548.46x = 878,447.58 × 364,640.13
  4. Step 4: Simplify right side
    636,548.46x = 320,317,239,769.39
  5. Step 5: Solve for x
    x = 320,317,239,769.39/636,548.46
  6. Step 6: Final answer
    x = 503,209.51

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1.5x scale

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.