Home / 287,451.54-393,810.50-276,677.37

Finding the Fourth Proportional to 287,451.54, 393,810.50 and 276,677.37

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Solution

The fourth proportional to 287,451.54, 393,810.50 and 276,677.37 is: 379,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,451.54 : 393,810.50 = 276,677.37 : x
  2. Step 2: Convert to fraction form
    287,451.54/393,810.50 = 276,677.37/x
  3. Step 3: Cross multiply
    287,451.54x = 393,810.50 × 276,677.37
  4. Step 4: Simplify right side
    287,451.54x = 108,958,454,110.08
  5. Step 5: Solve for x
    x = 108,958,454,110.08/287,451.54
  6. Step 6: Final answer
    x = 379,049.82

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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.