Home / 1,581,143.37-2,181,977.37-855,990.60

Finding the Fourth Proportional to 1,581,143.37, 2,181,977.37 and 855,990.60

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Solution

The fourth proportional to 1,581,143.37, 2,181,977.37 and 855,990.60 is: 1,181,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,143.37 : 2,181,977.37 = 855,990.60 : x
  2. Step 2: Convert to fraction form
    1,581,143.37/2,181,977.37 = 855,990.60/x
  3. Step 3: Cross multiply
    1,581,143.37x = 2,181,977.37 × 855,990.60
  4. Step 4: Simplify right side
    1,581,143.37x = 1,867,752,118,132.72
  5. Step 5: Solve for x
    x = 1,867,752,118,132.72/1,581,143.37
  6. Step 6: Final answer
    x = 1,181,266.77

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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.