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Finding the Fourth Proportional to 636,668.30, 878,563.13 and 364,673.84

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Solution

The fourth proportional to 636,668.30, 878,563.13 and 364,673.84 is: 503,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,668.30 : 878,563.13 = 364,673.84 : x
  2. Step 2: Convert to fraction form
    636,668.30/878,563.13 = 364,673.84/x
  3. Step 3: Cross multiply
    636,668.30x = 878,563.13 × 364,673.84
  4. Step 4: Simplify right side
    636,668.30x = 320,388,984,083.33
  5. Step 5: Solve for x
    x = 320,388,984,083.33/636,668.30
  6. Step 6: Final answer
    x = 503,227.48

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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.