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Finding the Fourth Proportional to 636,083.58, 877,812.09 and 349,611.30

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Solution

The fourth proportional to 636,083.58, 877,812.09 and 349,611.30 is: 482,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,083.58 : 877,812.09 = 349,611.30 : x
  2. Step 2: Convert to fraction form
    636,083.58/877,812.09 = 349,611.30/x
  3. Step 3: Cross multiply
    636,083.58x = 877,812.09 × 349,611.30
  4. Step 4: Simplify right side
    636,083.58x = 306,893,025,940.62
  5. Step 5: Solve for x
    x = 306,893,025,940.62/636,083.58
  6. Step 6: Final answer
    x = 482,472.80

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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.