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Finding the Fourth Proportional to 636,063.02, 877,756.78 and 349,576.95

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Solution

The fourth proportional to 636,063.02, 877,756.78 and 349,576.95 is: 482,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,063.02 : 877,756.78 = 349,576.95 : x
  2. Step 2: Convert to fraction form
    636,063.02/877,756.78 = 349,576.95/x
  3. Step 3: Cross multiply
    636,063.02x = 877,756.78 × 349,576.95
  4. Step 4: Simplify right side
    636,063.02x = 306,843,539,756.41
  5. Step 5: Solve for x
    x = 306,843,539,756.41/636,063.02
  6. Step 6: Final answer
    x = 482,410.60

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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.