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Finding the Fourth Proportional to 410,508.22, 566,892.62 and 388,143.72

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Solution

The fourth proportional to 410,508.22, 566,892.62 and 388,143.72 is: 536,008.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,508.22 : 566,892.62 = 388,143.72 : x
  2. Step 2: Convert to fraction form
    410,508.22/566,892.62 = 388,143.72/x
  3. Step 3: Cross multiply
    410,508.22x = 566,892.62 × 388,143.72
  4. Step 4: Simplify right side
    410,508.22x = 220,035,810,367.35
  5. Step 5: Solve for x
    x = 220,035,810,367.35/410,508.22
  6. Step 6: Final answer
    x = 536,008.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.