Home / 724,943.20-1,087,414.80-659,624.80

Finding the Fourth Proportional to 724,943.20, 1,087,414.80 and 659,624.80

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Solution

The fourth proportional to 724,943.20, 1,087,414.80 and 659,624.80 is: 989,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,943.20 : 1,087,414.80 = 659,624.80 : x
  2. Step 2: Convert to fraction form
    724,943.20/1,087,414.80 = 659,624.80/x
  3. Step 3: Cross multiply
    724,943.20x = 1,087,414.80 × 659,624.80
  4. Step 4: Simplify right side
    724,943.20x = 717,285,769,967.04
  5. Step 5: Solve for x
    x = 717,285,769,967.04/724,943.20
  6. Step 6: Final answer
    x = 989,437.20

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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.