Home / 1,280,055.06-1,765,150.11-1,099,364.58

Finding the Fourth Proportional to 1,280,055.06, 1,765,150.11 and 1,099,364.58

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Solution

The fourth proportional to 1,280,055.06, 1,765,150.11 and 1,099,364.58 is: 1,515,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,055.06 : 1,765,150.11 = 1,099,364.58 : x
  2. Step 2: Convert to fraction form
    1,280,055.06/1,765,150.11 = 1,099,364.58/x
  3. Step 3: Cross multiply
    1,280,055.06x = 1,765,150.11 × 1,099,364.58
  4. Step 4: Simplify right side
    1,280,055.06x = 1,940,543,509,317.10
  5. Step 5: Solve for x
    x = 1,940,543,509,317.10/1,280,055.06
  6. Step 6: Final answer
    x = 1,515,984.41

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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.