Home / 1,758,064.80-2,629,903.18-1,328,406.78

Finding the Fourth Proportional to 1,758,064.80, 2,629,903.18 and 1,328,406.78

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Solution

The fourth proportional to 1,758,064.80, 2,629,903.18 and 1,328,406.78 is: 1,987,174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758,064.80 : 2,629,903.18 = 1,328,406.78 : x
  2. Step 2: Convert to fraction form
    1,758,064.80/2,629,903.18 = 1,328,406.78/x
  3. Step 3: Cross multiply
    1,758,064.80x = 2,629,903.18 × 1,328,406.78
  4. Step 4: Simplify right side
    1,758,064.80x = 3,493,581,215,055.56
  5. Step 5: Solve for x
    x = 3,493,581,215,055.56/1,758,064.80
  6. Step 6: Final answer
    x = 1,987,174.32

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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.