Home / 1,920,489.78-2,648,027.79-1,309,004.58

Finding the Fourth Proportional to 1,920,489.78, 2,648,027.79 and 1,309,004.58

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Solution

The fourth proportional to 1,920,489.78, 2,648,027.79 and 1,309,004.58 is: 1,804,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,489.78 : 2,648,027.79 = 1,309,004.58 : x
  2. Step 2: Convert to fraction form
    1,920,489.78/2,648,027.79 = 1,309,004.58/x
  3. Step 3: Cross multiply
    1,920,489.78x = 2,648,027.79 × 1,309,004.58
  4. Step 4: Simplify right side
    1,920,489.78x = 3,466,280,505,077.28
  5. Step 5: Solve for x
    x = 3,466,280,505,077.28/1,920,489.78
  6. Step 6: Final answer
    x = 1,804,894.01

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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.