Home / 1,292,855.40-1,940,435.10-759,709.80

Finding the Fourth Proportional to 1,292,855.40, 1,940,435.10 and 759,709.80

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Solution

The fourth proportional to 1,292,855.40, 1,940,435.10 and 759,709.80 is: 1,140,241.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,855.40 : 1,940,435.10 = 759,709.80 : x
  2. Step 2: Convert to fraction form
    1,292,855.40/1,940,435.10 = 759,709.80/x
  3. Step 3: Cross multiply
    1,292,855.40x = 1,940,435.10 × 759,709.80
  4. Step 4: Simplify right side
    1,292,855.40x = 1,474,167,561,733.98
  5. Step 5: Solve for x
    x = 1,474,167,561,733.98/1,292,855.40
  6. Step 6: Final answer
    x = 1,140,241.64

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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.