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Finding the Fourth Proportional to 557,137, 768,878.22 and 327,706.12

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Solution

The fourth proportional to 557,137, 768,878.22 and 327,706.12 is: 452,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,137 : 768,878.22 = 327,706.12 : x
  2. Step 2: Convert to fraction form
    557,137/768,878.22 = 327,706.12/x
  3. Step 3: Cross multiply
    557,137x = 768,878.22 × 327,706.12
  4. Step 4: Simplify right side
    557,137x = 251,966,098,228.71
  5. Step 5: Solve for x
    x = 251,966,098,228.71/557,137
  6. Step 6: Final answer
    x = 452,251.60

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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.