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Finding the Fourth Proportional to 552,400.70, 828,017.85 and 215,311.10

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Solution

The fourth proportional to 552,400.70, 828,017.85 and 215,311.10 is: 322,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,400.70 : 828,017.85 = 215,311.10 : x
  2. Step 2: Convert to fraction form
    552,400.70/828,017.85 = 215,311.10/x
  3. Step 3: Cross multiply
    552,400.70x = 828,017.85 × 215,311.10
  4. Step 4: Simplify right side
    552,400.70x = 178,281,434,103.14
  5. Step 5: Solve for x
    x = 178,281,434,103.14/552,400.70
  6. Step 6: Final answer
    x = 322,739.33

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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.