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Finding the Fourth Proportional to 552,238.20, 828,357.30 and 286,517.70

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Solution

The fourth proportional to 552,238.20, 828,357.30 and 286,517.70 is: 429,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,238.20 : 828,357.30 = 286,517.70 : x
  2. Step 2: Convert to fraction form
    552,238.20/828,357.30 = 286,517.70/x
  3. Step 3: Cross multiply
    552,238.20x = 828,357.30 × 286,517.70
  4. Step 4: Simplify right side
    552,238.20x = 237,339,028,374.21
  5. Step 5: Solve for x
    x = 237,339,028,374.21/552,238.20
  6. Step 6: Final answer
    x = 429,776.55

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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.