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Finding the Fourth Proportional to 636,083.72, 877,801.02 and 349,610.48

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Solution

The fourth proportional to 636,083.72, 877,801.02 and 349,610.48 is: 482,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,083.72 : 877,801.02 = 349,610.48 : x
  2. Step 2: Convert to fraction form
    636,083.72/877,801.02 = 349,610.48/x
  3. Step 3: Cross multiply
    636,083.72x = 877,801.02 × 349,610.48
  4. Step 4: Simplify right side
    636,083.72x = 306,888,435,946.69
  5. Step 5: Solve for x
    x = 306,888,435,946.69/636,083.72
  6. Step 6: Final answer
    x = 482,465.48

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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.