Home / 724,429.20-1,086,643.80-659,110.80

Finding the Fourth Proportional to 724,429.20, 1,086,643.80 and 659,110.80

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Solution

The fourth proportional to 724,429.20, 1,086,643.80 and 659,110.80 is: 988,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,429.20 : 1,086,643.80 = 659,110.80 : x
  2. Step 2: Convert to fraction form
    724,429.20/1,086,643.80 = 659,110.80/x
  3. Step 3: Cross multiply
    724,429.20x = 1,086,643.80 × 659,110.80
  4. Step 4: Simplify right side
    724,429.20x = 716,218,664,333.04
  5. Step 5: Solve for x
    x = 716,218,664,333.04/724,429.20
  6. Step 6: Final answer
    x = 988,666.20

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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.