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Finding the Fourth Proportional to 552,661.70, 828,992.55 and 487,343.30

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Solution

The fourth proportional to 552,661.70, 828,992.55 and 487,343.30 is: 731,014.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,661.70 : 828,992.55 = 487,343.30 : x
  2. Step 2: Convert to fraction form
    552,661.70/828,992.55 = 487,343.30/x
  3. Step 3: Cross multiply
    552,661.70x = 828,992.55 × 487,343.30
  4. Step 4: Simplify right side
    552,661.70x = 404,003,964,992.42
  5. Step 5: Solve for x
    x = 404,003,964,992.42/552,661.70
  6. Step 6: Final answer
    x = 731,014.95

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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.