Home / 1,231,747.76-1,699,793.96-687,877.80

Finding the Fourth Proportional to 1,231,747.76, 1,699,793.96 and 687,877.80

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Solution

The fourth proportional to 1,231,747.76, 1,699,793.96 and 687,877.80 is: 949,261.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,747.76 : 1,699,793.96 = 687,877.80 : x
  2. Step 2: Convert to fraction form
    1,231,747.76/1,699,793.96 = 687,877.80/x
  3. Step 3: Cross multiply
    1,231,747.76x = 1,699,793.96 × 687,877.80
  4. Step 4: Simplify right side
    1,231,747.76x = 1,169,250,529,658.09
  5. Step 5: Solve for x
    x = 1,169,250,529,658.09/1,231,747.76
  6. Step 6: Final answer
    x = 949,261.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.