Home / 2,135,491.20-3,200,644.80-1,235,203.20

Finding the Fourth Proportional to 2,135,491.20, 3,200,644.80 and 1,235,203.20

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Solution

The fourth proportional to 2,135,491.20, 3,200,644.80 and 1,235,203.20 is: 1,851,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,491.20 : 3,200,644.80 = 1,235,203.20 : x
  2. Step 2: Convert to fraction form
    2,135,491.20/3,200,644.80 = 1,235,203.20/x
  3. Step 3: Cross multiply
    2,135,491.20x = 3,200,644.80 × 1,235,203.20
  4. Step 4: Simplify right side
    2,135,491.20x = 3,953,446,699,023.36
  5. Step 5: Solve for x
    x = 3,953,446,699,023.36/2,135,491.20
  6. Step 6: Final answer
    x = 1,851,305.54

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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.