Home / 786,193.74-1,179,352.17-280,863.90

Finding the Fourth Proportional to 786,193.74, 1,179,352.17 and 280,863.90

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Solution

The fourth proportional to 786,193.74, 1,179,352.17 and 280,863.90 is: 421,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,193.74 : 1,179,352.17 = 280,863.90 : x
  2. Step 2: Convert to fraction form
    786,193.74/1,179,352.17 = 280,863.90/x
  3. Step 3: Cross multiply
    786,193.74x = 1,179,352.17 × 280,863.90
  4. Step 4: Simplify right side
    786,193.74x = 331,237,449,939.66
  5. Step 5: Solve for x
    x = 331,237,449,939.66/786,193.74
  6. Step 6: Final answer
    x = 421,317.84

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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.