Home / 1,269,427.92-1,904,148.40-427,986.96

Finding the Fourth Proportional to 1,269,427.92, 1,904,148.40 and 427,986.96

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Solution

The fourth proportional to 1,269,427.92, 1,904,148.40 and 427,986.96 is: 641,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,427.92 : 1,904,148.40 = 427,986.96 : x
  2. Step 2: Convert to fraction form
    1,269,427.92/1,904,148.40 = 427,986.96/x
  3. Step 3: Cross multiply
    1,269,427.92x = 1,904,148.40 × 427,986.96
  4. Step 4: Simplify right side
    1,269,427.92x = 814,950,685,104.86
  5. Step 5: Solve for x
    x = 814,950,685,104.86/1,269,427.92
  6. Step 6: Final answer
    x = 641,982.64

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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.