Home / 1,110,939.10-1,666,408.65-685,786.30

Finding the Fourth Proportional to 1,110,939.10, 1,666,408.65 and 685,786.30

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Solution

The fourth proportional to 1,110,939.10, 1,666,408.65 and 685,786.30 is: 1,028,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,939.10 : 1,666,408.65 = 685,786.30 : x
  2. Step 2: Convert to fraction form
    1,110,939.10/1,666,408.65 = 685,786.30/x
  3. Step 3: Cross multiply
    1,110,939.10x = 1,666,408.65 × 685,786.30
  4. Step 4: Simplify right side
    1,110,939.10x = 1,142,800,222,371.50
  5. Step 5: Solve for x
    x = 1,142,800,222,371.50/1,110,939.10
  6. Step 6: Final answer
    x = 1,028,679.45

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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.