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Finding the Fourth Proportional to 636,201.96, 877,959.72 and 349,723.86

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Solution

The fourth proportional to 636,201.96, 877,959.72 and 349,723.86 is: 482,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,201.96 : 877,959.72 = 349,723.86 : x
  2. Step 2: Convert to fraction form
    636,201.96/877,959.72 = 349,723.86/x
  3. Step 3: Cross multiply
    636,201.96x = 877,959.72 × 349,723.86
  4. Step 4: Simplify right side
    636,201.96x = 307,043,462,202.92
  5. Step 5: Solve for x
    x = 307,043,462,202.92/636,201.96
  6. Step 6: Final answer
    x = 482,619.48

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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.