Home / 1,581,558.98-2,182,561.79-856,406.77

Finding the Fourth Proportional to 1,581,558.98, 2,182,561.79 and 856,406.77

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Solution

The fourth proportional to 1,581,558.98, 2,182,561.79 and 856,406.77 is: 1,181,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,558.98 : 2,182,561.79 = 856,406.77 : x
  2. Step 2: Convert to fraction form
    1,581,558.98/2,182,561.79 = 856,406.77/x
  3. Step 3: Cross multiply
    1,581,558.98x = 2,182,561.79 × 856,406.77
  4. Step 4: Simplify right side
    1,581,558.98x = 1,869,160,683,160.88
  5. Step 5: Solve for x
    x = 1,869,160,683,160.88/1,581,558.98
  6. Step 6: Final answer
    x = 1,181,846.97

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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.