Home / 724,319.64-1,086,485.61-274,919.85

Finding the Fourth Proportional to 724,319.64, 1,086,485.61 and 274,919.85

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Solution

The fourth proportional to 724,319.64, 1,086,485.61 and 274,919.85 is: 412,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,319.64 : 1,086,485.61 = 274,919.85 : x
  2. Step 2: Convert to fraction form
    724,319.64/1,086,485.61 = 274,919.85/x
  3. Step 3: Cross multiply
    724,319.64x = 1,086,485.61 × 274,919.85
  4. Step 4: Simplify right side
    724,319.64x = 298,696,460,928.36
  5. Step 5: Solve for x
    x = 298,696,460,928.36/724,319.64
  6. Step 6: Final answer
    x = 412,382.11

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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.