Home / 1,099,120.32-1,648,712.88-938,181.54

Finding the Fourth Proportional to 1,099,120.32, 1,648,712.88 and 938,181.54

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Solution

The fourth proportional to 1,099,120.32, 1,648,712.88 and 938,181.54 is: 1,407,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,120.32 : 1,648,712.88 = 938,181.54 : x
  2. Step 2: Convert to fraction form
    1,099,120.32/1,648,712.88 = 938,181.54/x
  3. Step 3: Cross multiply
    1,099,120.32x = 1,648,712.88 × 938,181.54
  4. Step 4: Simplify right side
    1,099,120.32x = 1,546,791,988,776.24
  5. Step 5: Solve for x
    x = 1,546,791,988,776.24/1,099,120.32
  6. Step 6: Final answer
    x = 1,407,299.97

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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.