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Finding the Fourth Proportional to 636,201.67, 877,936.03 and 349,719.70

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Solution

The fourth proportional to 636,201.67, 877,936.03 and 349,719.70 is: 482,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,201.67 : 877,936.03 = 349,719.70 : x
  2. Step 2: Convert to fraction form
    636,201.67/877,936.03 = 349,719.70/x
  3. Step 3: Cross multiply
    636,201.67x = 877,936.03 × 349,719.70
  4. Step 4: Simplify right side
    636,201.67x = 307,031,525,030.79
  5. Step 5: Solve for x
    x = 307,031,525,030.79/636,201.67
  6. Step 6: Final answer
    x = 482,600.94

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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.