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Finding the Fourth Proportional to 808,191, 1,212,286.52 and 448,582.60

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Solution

The fourth proportional to 808,191, 1,212,286.52 and 448,582.60 is: 672,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,191 : 1,212,286.52 = 448,582.60 : x
  2. Step 2: Convert to fraction form
    808,191/1,212,286.52 = 448,582.60/x
  3. Step 3: Cross multiply
    808,191x = 1,212,286.52 × 448,582.60
  4. Step 4: Simplify right side
    808,191x = 543,810,639,086.55
  5. Step 5: Solve for x
    x = 543,810,639,086.55/808,191
  6. Step 6: Final answer
    x = 672,873.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.