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Finding the Fourth Proportional to 447,249.52, 670,737.72 and 127,427.50

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Solution

The fourth proportional to 447,249.52, 670,737.72 and 127,427.50 is: 191,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,249.52 : 670,737.72 = 127,427.50 : x
  2. Step 2: Convert to fraction form
    447,249.52/670,737.72 = 127,427.50/x
  3. Step 3: Cross multiply
    447,249.52x = 670,737.72 × 127,427.50
  4. Step 4: Simplify right side
    447,249.52x = 85,470,430,815.30
  5. Step 5: Solve for x
    x = 85,470,430,815.30/447,249.52
  6. Step 6: Final answer
    x = 191,102.34

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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.