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Finding the Fourth Proportional to 636,200.19, 877,957.20 and 349,722.02

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Solution

The fourth proportional to 636,200.19, 877,957.20 and 349,722.02 is: 482,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,200.19 : 877,957.20 = 349,722.02 : x
  2. Step 2: Convert to fraction form
    636,200.19/877,957.20 = 349,722.02/x
  3. Step 3: Cross multiply
    636,200.19x = 877,957.20 × 349,722.02
  4. Step 4: Simplify right side
    636,200.19x = 307,040,967,652.44
  5. Step 5: Solve for x
    x = 307,040,967,652.44/636,200.19
  6. Step 6: Final answer
    x = 482,616.91

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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.