Home / 287,469.45-393,834.57-276,695.24

Finding the Fourth Proportional to 287,469.45, 393,834.57 and 276,695.24

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Solution

The fourth proportional to 287,469.45, 393,834.57 and 276,695.24 is: 379,073.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,469.45 : 393,834.57 = 276,695.24 : x
  2. Step 2: Convert to fraction form
    287,469.45/393,834.57 = 276,695.24/x
  3. Step 3: Cross multiply
    287,469.45x = 393,834.57 × 276,695.24
  4. Step 4: Simplify right side
    287,469.45x = 108,972,148,897.27
  5. Step 5: Solve for x
    x = 108,972,148,897.27/287,469.45
  6. Step 6: Final answer
    x = 379,073.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.