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Finding the Fourth Proportional to 636,212.73, 877,993.79 and 349,744.89

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Solution

The fourth proportional to 636,212.73, 877,993.79 and 349,744.89 is: 482,659.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,212.73 : 877,993.79 = 349,744.89 : x
  2. Step 2: Convert to fraction form
    636,212.73/877,993.79 = 349,744.89/x
  3. Step 3: Cross multiply
    636,212.73x = 877,993.79 × 349,744.89
  4. Step 4: Simplify right side
    636,212.73x = 307,073,841,504.23
  5. Step 5: Solve for x
    x = 307,073,841,504.23/636,212.73
  6. Step 6: Final answer
    x = 482,659.07

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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.