Home / 3,131,135.60-4,695,222.88-1,212,945.20

Finding the Fourth Proportional to 3,131,135.60, 4,695,222.88 and 1,212,945.20

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Solution

The fourth proportional to 3,131,135.60, 4,695,222.88 and 1,212,945.20 is: 1,818,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,135.60 : 4,695,222.88 = 1,212,945.20 : x
  2. Step 2: Convert to fraction form
    3,131,135.60/4,695,222.88 = 1,212,945.20/x
  3. Step 3: Cross multiply
    3,131,135.60x = 4,695,222.88 × 1,212,945.20
  4. Step 4: Simplify right side
    3,131,135.60x = 5,695,048,055,226.18
  5. Step 5: Solve for x
    x = 5,695,048,055,226.18/3,131,135.60
  6. Step 6: Final answer
    x = 1,818,844.27

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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.