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Finding the Fourth Proportional to 636,196.88, 877,962.60 and 349,729.04

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Solution

The fourth proportional to 636,196.88, 877,962.60 and 349,729.04 is: 482,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,196.88 : 877,962.60 = 349,729.04 : x
  2. Step 2: Convert to fraction form
    636,196.88/877,962.60 = 349,729.04/x
  3. Step 3: Cross multiply
    636,196.88x = 877,962.60 × 349,729.04
  4. Step 4: Simplify right side
    636,196.88x = 307,049,017,253.90
  5. Step 5: Solve for x
    x = 307,049,017,253.90/636,196.88
  6. Step 6: Final answer
    x = 482,632.07

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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.