Home / 3,131,392.20-4,321,248.06-1,842,315.60

Finding the Fourth Proportional to 3,131,392.20, 4,321,248.06 and 1,842,315.60

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Solution

The fourth proportional to 3,131,392.20, 4,321,248.06 and 1,842,315.60 is: 2,542,352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,392.20 : 4,321,248.06 = 1,842,315.60 : x
  2. Step 2: Convert to fraction form
    3,131,392.20/4,321,248.06 = 1,842,315.60/x
  3. Step 3: Cross multiply
    3,131,392.20x = 4,321,248.06 × 1,842,315.60
  4. Step 4: Simplify right side
    3,131,392.20x = 7,961,102,712,407.74
  5. Step 5: Solve for x
    x = 7,961,102,712,407.74/3,131,392.20
  6. Step 6: Final answer
    x = 2,542,352.48

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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.