Home / 1,913,174.67-2,640,480.90-1,128,326.85

Finding the Fourth Proportional to 1,913,174.67, 2,640,480.90 and 1,128,326.85

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Solution

The fourth proportional to 1,913,174.67, 2,640,480.90 and 1,128,326.85 is: 1,557,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,174.67 : 2,640,480.90 = 1,128,326.85 : x
  2. Step 2: Convert to fraction form
    1,913,174.67/2,640,480.90 = 1,128,326.85/x
  3. Step 3: Cross multiply
    1,913,174.67x = 2,640,480.90 × 1,128,326.85
  4. Step 4: Simplify right side
    1,913,174.67x = 2,979,325,496,382.17
  5. Step 5: Solve for x
    x = 2,979,325,496,382.17/1,913,174.67
  6. Step 6: Final answer
    x = 1,557,267.90

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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.