Home / 724,942.80-1,087,414.20-689,950.80

Finding the Fourth Proportional to 724,942.80, 1,087,414.20 and 689,950.80

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Solution

The fourth proportional to 724,942.80, 1,087,414.20 and 689,950.80 is: 1,034,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,942.80 : 1,087,414.20 = 689,950.80 : x
  2. Step 2: Convert to fraction form
    724,942.80/1,087,414.20 = 689,950.80/x
  3. Step 3: Cross multiply
    724,942.80x = 1,087,414.20 × 689,950.80
  4. Step 4: Simplify right side
    724,942.80x = 750,262,297,221.36
  5. Step 5: Solve for x
    x = 750,262,297,221.36/724,942.80
  6. Step 6: Final answer
    x = 1,034,926.20

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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.