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Finding the Fourth Proportional to 552,392.20, 828,005.10 and 215,302.60

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Solution

The fourth proportional to 552,392.20, 828,005.10 and 215,302.60 is: 322,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,392.20 : 828,005.10 = 215,302.60 : x
  2. Step 2: Convert to fraction form
    552,392.20/828,005.10 = 215,302.60/x
  3. Step 3: Cross multiply
    552,392.20x = 828,005.10 × 215,302.60
  4. Step 4: Simplify right side
    552,392.20x = 178,271,650,843.26
  5. Step 5: Solve for x
    x = 178,271,650,843.26/552,392.20
  6. Step 6: Final answer
    x = 322,726.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.