Home / 1,581,072.32-2,181,880.46-855,920.01

Finding the Fourth Proportional to 1,581,072.32, 2,181,880.46 and 855,920.01

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Solution

The fourth proportional to 1,581,072.32, 2,181,880.46 and 855,920.01 is: 1,181,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,072.32 : 2,181,880.46 = 855,920.01 : x
  2. Step 2: Convert to fraction form
    1,581,072.32/2,181,880.46 = 855,920.01/x
  3. Step 3: Cross multiply
    1,581,072.32x = 2,181,880.46 × 855,920.01
  4. Step 4: Simplify right side
    1,581,072.32x = 1,867,515,140,862.40
  5. Step 5: Solve for x
    x = 1,867,515,140,862.40/1,581,072.32
  6. Step 6: Final answer
    x = 1,181,169.97

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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.