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Finding the Fourth Proportional to 548,052.70, 821,301.45 and 404,779.90

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Solution

The fourth proportional to 548,052.70, 821,301.45 and 404,779.90 is: 606,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,052.70 : 821,301.45 = 404,779.90 : x
  2. Step 2: Convert to fraction form
    548,052.70/821,301.45 = 404,779.90/x
  3. Step 3: Cross multiply
    548,052.70x = 821,301.45 × 404,779.90
  4. Step 4: Simplify right side
    548,052.70x = 332,446,318,800.86
  5. Step 5: Solve for x
    x = 332,446,318,800.86/548,052.70
  6. Step 6: Final answer
    x = 606,595.53

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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.