Home / 1,361,778.36-2,042,667.56-415,140.88

Finding the Fourth Proportional to 1,361,778.36, 2,042,667.56 and 415,140.88

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Solution

The fourth proportional to 1,361,778.36, 2,042,667.56 and 415,140.88 is: 622,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,778.36 : 2,042,667.56 = 415,140.88 : x
  2. Step 2: Convert to fraction form
    1,361,778.36/2,042,667.56 = 415,140.88/x
  3. Step 3: Cross multiply
    1,361,778.36x = 2,042,667.56 × 415,140.88
  4. Step 4: Simplify right side
    1,361,778.36x = 847,994,808,405.85
  5. Step 5: Solve for x
    x = 847,994,808,405.85/1,361,778.36
  6. Step 6: Final answer
    x = 622,711.33

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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.