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Finding the Fourth Proportional to 636,150.09, 877,887.78 and 349,664.03

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Solution

The fourth proportional to 636,150.09, 877,887.78 and 349,664.03 is: 482,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,150.09 : 877,887.78 = 349,664.03 : x
  2. Step 2: Convert to fraction form
    636,150.09/877,887.78 = 349,664.03/x
  3. Step 3: Cross multiply
    636,150.09x = 877,887.78 × 349,664.03
  4. Step 4: Simplify right side
    636,150.09x = 306,965,779,042.55
  5. Step 5: Solve for x
    x = 306,965,779,042.55/636,150.09
  6. Step 6: Final answer
    x = 482,536.72

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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.