Home / 305,816.40-457,428.60-274,453.20

Finding the Fourth Proportional to 305,816.40, 457,428.60 and 274,453.20

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Solution

The fourth proportional to 305,816.40, 457,428.60 and 274,453.20 is: 410,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,816.40 : 457,428.60 = 274,453.20 : x
  2. Step 2: Convert to fraction form
    305,816.40/457,428.60 = 274,453.20/x
  3. Step 3: Cross multiply
    305,816.40x = 457,428.60 × 274,453.20
  4. Step 4: Simplify right side
    305,816.40x = 125,542,743,041.52
  5. Step 5: Solve for x
    x = 125,542,743,041.52/305,816.40
  6. Step 6: Final answer
    x = 410,516.71

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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.