Home / 1,581,081.90-2,181,893.74-855,929.60

Finding the Fourth Proportional to 1,581,081.90, 2,181,893.74 and 855,929.60

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Solution

The fourth proportional to 1,581,081.90, 2,181,893.74 and 855,929.60 is: 1,181,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,081.90 : 2,181,893.74 = 855,929.60 : x
  2. Step 2: Convert to fraction form
    1,581,081.90/2,181,893.74 = 855,929.60/x
  3. Step 3: Cross multiply
    1,581,081.90x = 2,181,893.74 × 855,929.60
  4. Step 4: Simplify right side
    1,581,081.90x = 1,867,547,436,068.12
  5. Step 5: Solve for x
    x = 1,867,547,436,068.12/1,581,081.90
  6. Step 6: Final answer
    x = 1,181,183.24

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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.