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Finding the Fourth Proportional to 612,190.80, 844,782.48 and 340,241.04

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Solution

The fourth proportional to 612,190.80, 844,782.48 and 340,241.04 is: 469,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,190.80 : 844,782.48 = 340,241.04 : x
  2. Step 2: Convert to fraction form
    612,190.80/844,782.48 = 340,241.04/x
  3. Step 3: Cross multiply
    612,190.80x = 844,782.48 × 340,241.04
  4. Step 4: Simplify right side
    612,190.80x = 287,429,669,568.98
  5. Step 5: Solve for x
    x = 287,429,669,568.98/612,190.80
  6. Step 6: Final answer
    x = 469,509.95

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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.