Home / 2,782,427.88-4,177,879.74-2,645,417.28

Finding the Fourth Proportional to 2,782,427.88, 4,177,879.74 and 2,645,417.28

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Solution

The fourth proportional to 2,782,427.88, 4,177,879.74 and 2,645,417.28 is: 3,972,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,427.88 : 4,177,879.74 = 2,645,417.28 : x
  2. Step 2: Convert to fraction form
    2,782,427.88/4,177,879.74 = 2,645,417.28/x
  3. Step 3: Cross multiply
    2,782,427.88x = 4,177,879.74 × 2,645,417.28
  4. Step 4: Simplify right side
    2,782,427.88x = 11,052,235,257,957.91
  5. Step 5: Solve for x
    x = 11,052,235,257,957.91/2,782,427.88
  6. Step 6: Final answer
    x = 3,972,155.16

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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.