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Finding the Fourth Proportional to 570,998.82, 855,563.85 and 345,676.31

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Solution

The fourth proportional to 570,998.82, 855,563.85 and 345,676.31 is: 517,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,998.82 : 855,563.85 = 345,676.31 : x
  2. Step 2: Convert to fraction form
    570,998.82/855,563.85 = 345,676.31/x
  3. Step 3: Cross multiply
    570,998.82x = 855,563.85 × 345,676.31
  4. Step 4: Simplify right side
    570,998.82x = 295,748,150,359.57
  5. Step 5: Solve for x
    x = 295,748,150,359.57/570,998.82
  6. Step 6: Final answer
    x = 517,948.79

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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.