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Finding the Fourth Proportional to 529,580.21, 794,375.87 and 209,809.89

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Solution

The fourth proportional to 529,580.21, 794,375.87 and 209,809.89 is: 314,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,580.21 : 794,375.87 = 209,809.89 : x
  2. Step 2: Convert to fraction form
    529,580.21/794,375.87 = 209,809.89/x
  3. Step 3: Cross multiply
    529,580.21x = 794,375.87 × 209,809.89
  4. Step 4: Simplify right side
    529,580.21x = 166,667,912,854.31
  5. Step 5: Solve for x
    x = 166,667,912,854.31/529,580.21
  6. Step 6: Final answer
    x = 314,717.04

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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.