Home / 3,131,137.60-4,695,225.88-1,212,947.20

Finding the Fourth Proportional to 3,131,137.60, 4,695,225.88 and 1,212,947.20

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Solution

The fourth proportional to 3,131,137.60, 4,695,225.88 and 1,212,947.20 is: 1,818,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,137.60 : 4,695,225.88 = 1,212,947.20 : x
  2. Step 2: Convert to fraction form
    3,131,137.60/4,695,225.88 = 1,212,947.20/x
  3. Step 3: Cross multiply
    3,131,137.60x = 4,695,225.88 × 1,212,947.20
  4. Step 4: Simplify right side
    3,131,137.60x = 5,695,061,084,513.54
  5. Step 5: Solve for x
    x = 5,695,061,084,513.54/3,131,137.60
  6. Step 6: Final answer
    x = 1,818,847.27

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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.