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Finding the Fourth Proportional to 662,951.08, 914,870.82 and 361,144.36

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Solution

The fourth proportional to 662,951.08, 914,870.82 and 361,144.36 is: 498,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,951.08 : 914,870.82 = 361,144.36 : x
  2. Step 2: Convert to fraction form
    662,951.08/914,870.82 = 361,144.36/x
  3. Step 3: Cross multiply
    662,951.08x = 914,870.82 × 361,144.36
  4. Step 4: Simplify right side
    662,951.08x = 330,400,436,771.58
  5. Step 5: Solve for x
    x = 330,400,436,771.58/662,951.08
  6. Step 6: Final answer
    x = 498,378.31

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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.