Home / 1,309,610.39-1,807,249.20-728,823.80

Finding the Fourth Proportional to 1,309,610.39, 1,807,249.20 and 728,823.80

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Solution

The fourth proportional to 1,309,610.39, 1,807,249.20 and 728,823.80 is: 1,005,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,610.39 : 1,807,249.20 = 728,823.80 : x
  2. Step 2: Convert to fraction form
    1,309,610.39/1,807,249.20 = 728,823.80/x
  3. Step 3: Cross multiply
    1,309,610.39x = 1,807,249.20 × 728,823.80
  4. Step 4: Simplify right side
    1,309,610.39x = 1,317,166,229,490.96
  5. Step 5: Solve for x
    x = 1,317,166,229,490.96/1,309,610.39
  6. Step 6: Final answer
    x = 1,005,769.53

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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.