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Finding the Fourth Proportional to 612,086.13, 844,625.07 and 340,136.82

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Solution

The fourth proportional to 612,086.13, 844,625.07 and 340,136.82 is: 469,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,086.13 : 844,625.07 = 340,136.82 : x
  2. Step 2: Convert to fraction form
    612,086.13/844,625.07 = 340,136.82/x
  3. Step 3: Cross multiply
    612,086.13x = 844,625.07 × 340,136.82
  4. Step 4: Simplify right side
    612,086.13x = 287,288,085,402.08
  5. Step 5: Solve for x
    x = 287,288,085,402.08/612,086.13
  6. Step 6: Final answer
    x = 469,358.92

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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.