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Finding the Fourth Proportional to 555,424.62, 765,959.45 and 383,067.15

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Solution

The fourth proportional to 555,424.62, 765,959.45 and 383,067.15 is: 528,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,424.62 : 765,959.45 = 383,067.15 : x
  2. Step 2: Convert to fraction form
    555,424.62/765,959.45 = 383,067.15/x
  3. Step 3: Cross multiply
    555,424.62x = 765,959.45 × 383,067.15
  4. Step 4: Simplify right side
    555,424.62x = 293,413,901,611.73
  5. Step 5: Solve for x
    x = 293,413,901,611.73/555,424.62
  6. Step 6: Final answer
    x = 528,269.53

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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.