Home / 693,730.20-1,040,400.90-220,560.60

Finding the Fourth Proportional to 693,730.20, 1,040,400.90 and 220,560.60

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Solution

The fourth proportional to 693,730.20, 1,040,400.90 and 220,560.60 is: 330,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,730.20 : 1,040,400.90 = 220,560.60 : x
  2. Step 2: Convert to fraction form
    693,730.20/1,040,400.90 = 220,560.60/x
  3. Step 3: Cross multiply
    693,730.20x = 1,040,400.90 × 220,560.60
  4. Step 4: Simplify right side
    693,730.20x = 229,471,446,744.54
  5. Step 5: Solve for x
    x = 229,471,446,744.54/693,730.20
  6. Step 6: Final answer
    x = 330,779.09

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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.