Home / 3,115,910.40-4,675,420.80-1,769,107.20

Finding the Fourth Proportional to 3,115,910.40, 4,675,420.80 and 1,769,107.20

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Solution

The fourth proportional to 3,115,910.40, 4,675,420.80 and 1,769,107.20 is: 2,654,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,910.40 : 4,675,420.80 = 1,769,107.20 : x
  2. Step 2: Convert to fraction form
    3,115,910.40/4,675,420.80 = 1,769,107.20/x
  3. Step 3: Cross multiply
    3,115,910.40x = 4,675,420.80 × 1,769,107.20
  4. Step 4: Simplify right side
    3,115,910.40x = 8,271,320,600,309.76
  5. Step 5: Solve for x
    x = 8,271,320,600,309.76/3,115,910.40
  6. Step 6: Final answer
    x = 2,654,543.79

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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.