Home / 1,581,561.09-2,182,564.80-856,408.82

Finding the Fourth Proportional to 1,581,561.09, 2,182,564.80 and 856,408.82

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Solution

The fourth proportional to 1,581,561.09, 2,182,564.80 and 856,408.82 is: 1,181,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,561.09 : 2,182,564.80 = 856,408.82 : x
  2. Step 2: Convert to fraction form
    1,581,561.09/2,182,564.80 = 856,408.82/x
  3. Step 3: Cross multiply
    1,581,561.09x = 2,182,564.80 × 856,408.82
  4. Step 4: Simplify right side
    1,581,561.09x = 1,869,167,734,028.71
  5. Step 5: Solve for x
    x = 1,869,167,734,028.71/1,581,561.09
  6. Step 6: Final answer
    x = 1,181,849.85

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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.