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Finding the Fourth Proportional to 636,554.46, 878,455.86 and 364,646.13

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Solution

The fourth proportional to 636,554.46, 878,455.86 and 364,646.13 is: 503,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,554.46 : 878,455.86 = 364,646.13 : x
  2. Step 2: Convert to fraction form
    636,554.46/878,455.86 = 364,646.13/x
  3. Step 3: Cross multiply
    636,554.46x = 878,455.86 × 364,646.13
  4. Step 4: Simplify right side
    636,554.46x = 320,325,529,724.82
  5. Step 5: Solve for x
    x = 320,325,529,724.82/636,554.46
  6. Step 6: Final answer
    x = 503,217.79

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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.