Home / 1,242,141.08-1,863,107.72-343,593.88

Finding the Fourth Proportional to 1,242,141.08, 1,863,107.72 and 343,593.88

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Solution

The fourth proportional to 1,242,141.08, 1,863,107.72 and 343,593.88 is: 515,362.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,141.08 : 1,863,107.72 = 343,593.88 : x
  2. Step 2: Convert to fraction form
    1,242,141.08/1,863,107.72 = 343,593.88/x
  3. Step 3: Cross multiply
    1,242,141.08x = 1,863,107.72 × 343,593.88
  4. Step 4: Simplify right side
    1,242,141.08x = 640,152,410,372.75
  5. Step 5: Solve for x
    x = 640,152,410,372.75/1,242,141.08
  6. Step 6: Final answer
    x = 515,362.08

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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.