Home / 724,139.10-1,086,727.05-303,716.70

Finding the Fourth Proportional to 724,139.10, 1,086,727.05 and 303,716.70

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Solution

The fourth proportional to 724,139.10, 1,086,727.05 and 303,716.70 is: 455,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,139.10 : 1,086,727.05 = 303,716.70 : x
  2. Step 2: Convert to fraction form
    724,139.10/1,086,727.05 = 303,716.70/x
  3. Step 3: Cross multiply
    724,139.10x = 1,086,727.05 × 303,716.70
  4. Step 4: Simplify right side
    724,139.10x = 330,057,153,426.74
  5. Step 5: Solve for x
    x = 330,057,153,426.74/724,139.10
  6. Step 6: Final answer
    x = 455,792.48

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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.