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Finding the Fourth Proportional to 552,651.20, 828,976.80 and 272,110.40

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Solution

The fourth proportional to 552,651.20, 828,976.80 and 272,110.40 is: 408,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,651.20 : 828,976.80 = 272,110.40 : x
  2. Step 2: Convert to fraction form
    552,651.20/828,976.80 = 272,110.40/x
  3. Step 3: Cross multiply
    552,651.20x = 828,976.80 × 272,110.40
  4. Step 4: Simplify right side
    552,651.20x = 225,573,208,638.72
  5. Step 5: Solve for x
    x = 225,573,208,638.72/552,651.20
  6. Step 6: Final answer
    x = 408,165.60

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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.