Home / 691,950.80-1,039,481.40-673,288.40

Finding the Fourth Proportional to 691,950.80, 1,039,481.40 and 673,288.40

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Solution

The fourth proportional to 691,950.80, 1,039,481.40 and 673,288.40 is: 1,011,445.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,950.80 : 1,039,481.40 = 673,288.40 : x
  2. Step 2: Convert to fraction form
    691,950.80/1,039,481.40 = 673,288.40/x
  3. Step 3: Cross multiply
    691,950.80x = 1,039,481.40 × 673,288.40
  4. Step 4: Simplify right side
    691,950.80x = 699,870,768,635.76
  5. Step 5: Solve for x
    x = 699,870,768,635.76/691,950.80
  6. Step 6: Final answer
    x = 1,011,445.86

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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.