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Finding the Fourth Proportional to 636,556.46, 878,458.62 and 364,648.13

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Solution

The fourth proportional to 636,556.46, 878,458.62 and 364,648.13 is: 503,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,556.46 : 878,458.62 = 364,648.13 : x
  2. Step 2: Convert to fraction form
    636,556.46/878,458.62 = 364,648.13/x
  3. Step 3: Cross multiply
    636,556.46x = 878,458.62 × 364,648.13
  4. Step 4: Simplify right side
    636,556.46x = 320,328,293,065.38
  5. Step 5: Solve for x
    x = 320,328,293,065.38/636,556.46
  6. Step 6: Final answer
    x = 503,220.55

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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.