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Finding the Fourth Proportional to 612,067.21, 844,657.41 and 340,160.61

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Solution

The fourth proportional to 612,067.21, 844,657.41 and 340,160.61 is: 469,424.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,067.21 : 844,657.41 = 340,160.61 : x
  2. Step 2: Convert to fraction form
    612,067.21/844,657.41 = 340,160.61/x
  3. Step 3: Cross multiply
    612,067.21x = 844,657.41 × 340,160.61
  4. Step 4: Simplify right side
    612,067.21x = 287,319,175,603.33
  5. Step 5: Solve for x
    x = 287,319,175,603.33/612,067.21
  6. Step 6: Final answer
    x = 469,424.22

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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.