Home / 724,809.70-1,087,214.55-659,491.30

Finding the Fourth Proportional to 724,809.70, 1,087,214.55 and 659,491.30

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Solution

The fourth proportional to 724,809.70, 1,087,214.55 and 659,491.30 is: 989,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,809.70 : 1,087,214.55 = 659,491.30 : x
  2. Step 2: Convert to fraction form
    724,809.70/1,087,214.55 = 659,491.30/x
  3. Step 3: Cross multiply
    724,809.70x = 1,087,214.55 × 659,491.30
  4. Step 4: Simplify right side
    724,809.70x = 717,008,536,958.42
  5. Step 5: Solve for x
    x = 717,008,536,958.42/724,809.70
  6. Step 6: Final answer
    x = 989,236.95

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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.