Home / 1,781,321.25-2,458,485.96-1,128,006.90

Finding the Fourth Proportional to 1,781,321.25, 2,458,485.96 and 1,128,006.90

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Solution

The fourth proportional to 1,781,321.25, 2,458,485.96 and 1,128,006.90 is: 1,556,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,321.25 : 2,458,485.96 = 1,128,006.90 : x
  2. Step 2: Convert to fraction form
    1,781,321.25/2,458,485.96 = 1,128,006.90/x
  3. Step 3: Cross multiply
    1,781,321.25x = 2,458,485.96 × 1,128,006.90
  4. Step 4: Simplify right side
    1,781,321.25x = 2,773,189,126,433.12
  5. Step 5: Solve for x
    x = 2,773,189,126,433.12/1,781,321.25
  6. Step 6: Final answer
    x = 1,556,815.83

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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.