Home / 1,320,134.29-1,821,722.31-810,738.25

Finding the Fourth Proportional to 1,320,134.29, 1,821,722.31 and 810,738.25

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Solution

The fourth proportional to 1,320,134.29, 1,821,722.31 and 810,738.25 is: 1,118,780.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,134.29 : 1,821,722.31 = 810,738.25 : x
  2. Step 2: Convert to fraction form
    1,320,134.29/1,821,722.31 = 810,738.25/x
  3. Step 3: Cross multiply
    1,320,134.29x = 1,821,722.31 × 810,738.25
  4. Step 4: Simplify right side
    1,320,134.29x = 1,476,939,953,041.05
  5. Step 5: Solve for x
    x = 1,476,939,953,041.05/1,320,134.29
  6. Step 6: Final answer
    x = 1,118,780.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.