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Finding the Fourth Proportional to 552,659.20, 828,988.80 and 384,697.60

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Solution

The fourth proportional to 552,659.20, 828,988.80 and 384,697.60 is: 577,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,659.20 : 828,988.80 = 384,697.60 : x
  2. Step 2: Convert to fraction form
    552,659.20/828,988.80 = 384,697.60/x
  3. Step 3: Cross multiply
    552,659.20x = 828,988.80 × 384,697.60
  4. Step 4: Simplify right side
    552,659.20x = 318,910,001,786.88
  5. Step 5: Solve for x
    x = 318,910,001,786.88/552,659.20
  6. Step 6: Final answer
    x = 577,046.40

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Similar ratio
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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.