Home / 855,297.60-1,280,181.60-667,291.20

Finding the Fourth Proportional to 855,297.60, 1,280,181.60 and 667,291.20

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Solution

The fourth proportional to 855,297.60, 1,280,181.60 and 667,291.20 is: 998,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,297.60 : 1,280,181.60 = 667,291.20 : x
  2. Step 2: Convert to fraction form
    855,297.60/1,280,181.60 = 667,291.20/x
  3. Step 3: Cross multiply
    855,297.60x = 1,280,181.60 × 667,291.20
  4. Step 4: Simplify right side
    855,297.60x = 854,253,916,081.92
  5. Step 5: Solve for x
    x = 854,253,916,081.92/855,297.60
  6. Step 6: Final answer
    x = 998,779.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.