Home / 905,724.40-1,358,716.20-274,687.60

Finding the Fourth Proportional to 905,724.40, 1,358,716.20 and 274,687.60

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Solution

The fourth proportional to 905,724.40, 1,358,716.20 and 274,687.60 is: 412,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,724.40 : 1,358,716.20 = 274,687.60 : x
  2. Step 2: Convert to fraction form
    905,724.40/1,358,716.20 = 274,687.60/x
  3. Step 3: Cross multiply
    905,724.40x = 1,358,716.20 × 274,687.60
  4. Step 4: Simplify right side
    905,724.40x = 373,222,492,059.12
  5. Step 5: Solve for x
    x = 373,222,492,059.12/905,724.40
  6. Step 6: Final answer
    x = 412,070.71

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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.