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Finding the Fourth Proportional to 636,212.23, 877,993.10 and 349,744.39

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Solution

The fourth proportional to 636,212.23, 877,993.10 and 349,744.39 is: 482,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,212.23 : 877,993.10 = 349,744.39 : x
  2. Step 2: Convert to fraction form
    636,212.23/877,993.10 = 349,744.39/x
  3. Step 3: Cross multiply
    636,212.23x = 877,993.10 × 349,744.39
  4. Step 4: Simplify right side
    636,212.23x = 307,073,159,434.99
  5. Step 5: Solve for x
    x = 307,073,159,434.99/636,212.23
  6. Step 6: Final answer
    x = 482,658.37

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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.