Home / 1,325,128.82-1,986,025.64-717,893.69

Finding the Fourth Proportional to 1,325,128.82, 1,986,025.64 and 717,893.69

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Solution

The fourth proportional to 1,325,128.82, 1,986,025.64 and 717,893.69 is: 1,075,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,128.82 : 1,986,025.64 = 717,893.69 : x
  2. Step 2: Convert to fraction form
    1,325,128.82/1,986,025.64 = 717,893.69/x
  3. Step 3: Cross multiply
    1,325,128.82x = 1,986,025.64 × 717,893.69
  4. Step 4: Simplify right side
    1,325,128.82x = 1,425,755,261,614.62
  5. Step 5: Solve for x
    x = 1,425,755,261,614.62/1,325,128.82
  6. Step 6: Final answer
    x = 1,075,937.11

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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.