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Finding the Fourth Proportional to 529,820.20, 794,115.90 and 214,069.80

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Solution

The fourth proportional to 529,820.20, 794,115.90 and 214,069.80 is: 320,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,820.20 : 794,115.90 = 214,069.80 : x
  2. Step 2: Convert to fraction form
    529,820.20/794,115.90 = 214,069.80/x
  3. Step 3: Cross multiply
    529,820.20x = 794,115.90 × 214,069.80
  4. Step 4: Simplify right side
    529,820.20x = 169,996,231,889.82
  5. Step 5: Solve for x
    x = 169,996,231,889.82/529,820.20
  6. Step 6: Final answer
    x = 320,856.46

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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.