Home / 1,920,128.54-2,878,500.92-783,845.37

Finding the Fourth Proportional to 1,920,128.54, 2,878,500.92 and 783,845.37

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Solution

The fourth proportional to 1,920,128.54, 2,878,500.92 and 783,845.37 is: 1,175,077.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,128.54 : 2,878,500.92 = 783,845.37 : x
  2. Step 2: Convert to fraction form
    1,920,128.54/2,878,500.92 = 783,845.37/x
  3. Step 3: Cross multiply
    1,920,128.54x = 2,878,500.92 × 783,845.37
  4. Step 4: Simplify right side
    1,920,128.54x = 2,256,299,614,763.51
  5. Step 5: Solve for x
    x = 2,256,299,614,763.51/1,920,128.54
  6. Step 6: Final answer
    x = 1,175,077.38

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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.