Home / 2,928,189.40-4,391,879.10-907,822.60

Finding the Fourth Proportional to 2,928,189.40, 4,391,879.10 and 907,822.60

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Solution

The fourth proportional to 2,928,189.40, 4,391,879.10 and 907,822.60 is: 1,361,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,189.40 : 4,391,879.10 = 907,822.60 : x
  2. Step 2: Convert to fraction form
    2,928,189.40/4,391,879.10 = 907,822.60/x
  3. Step 3: Cross multiply
    2,928,189.40x = 4,391,879.10 × 907,822.60
  4. Step 4: Simplify right side
    2,928,189.40x = 3,987,047,103,447.66
  5. Step 5: Solve for x
    x = 3,987,047,103,447.66/2,928,189.40
  6. Step 6: Final answer
    x = 1,361,608.34

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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.