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Finding the Fourth Proportional to 636,169.36, 877,914.48 and 349,683.34

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Solution

The fourth proportional to 636,169.36, 877,914.48 and 349,683.34 is: 482,563.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,169.36 : 877,914.48 = 349,683.34 : x
  2. Step 2: Convert to fraction form
    636,169.36/877,914.48 = 349,683.34/x
  3. Step 3: Cross multiply
    636,169.36x = 877,914.48 × 349,683.34
  4. Step 4: Simplify right side
    636,169.36x = 306,992,067,600.76
  5. Step 5: Solve for x
    x = 306,992,067,600.76/636,169.36
  6. Step 6: Final answer
    x = 482,563.43

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1.5x scale

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.