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Finding the Fourth Proportional to 636,212.52, 877,974.24 and 349,734.36

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Solution

The fourth proportional to 636,212.52, 877,974.24 and 349,734.36 is: 482,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,212.52 : 877,974.24 = 349,734.36 : x
  2. Step 2: Convert to fraction form
    636,212.52/877,974.24 = 349,734.36/x
  3. Step 3: Cross multiply
    636,212.52x = 877,974.24 × 349,734.36
  4. Step 4: Simplify right side
    636,212.52x = 307,057,758,922.89
  5. Step 5: Solve for x
    x = 307,057,758,922.89/636,212.52
  6. Step 6: Final answer
    x = 482,633.95

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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.