Home / 724,919.79-1,087,736.91-325,850.61

Finding the Fourth Proportional to 724,919.79, 1,087,736.91 and 325,850.61

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Solution

The fourth proportional to 724,919.79, 1,087,736.91 and 325,850.61 is: 488,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,919.79 : 1,087,736.91 = 325,850.61 : x
  2. Step 2: Convert to fraction form
    724,919.79/1,087,736.91 = 325,850.61/x
  3. Step 3: Cross multiply
    724,919.79x = 1,087,736.91 × 325,850.61
  4. Step 4: Simplify right side
    724,919.79x = 354,439,735,643.02
  5. Step 5: Solve for x
    x = 354,439,735,643.02/724,919.79
  6. Step 6: Final answer
    x = 488,936.49

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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.