Home / 1,279,209.64-1,765,464.10-728,059.35

Finding the Fourth Proportional to 1,279,209.64, 1,765,464.10 and 728,059.35

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Solution

The fourth proportional to 1,279,209.64, 1,765,464.10 and 728,059.35 is: 1,004,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,209.64 : 1,765,464.10 = 728,059.35 : x
  2. Step 2: Convert to fraction form
    1,279,209.64/1,765,464.10 = 728,059.35/x
  3. Step 3: Cross multiply
    1,279,209.64x = 1,765,464.10 × 728,059.35
  4. Step 4: Simplify right side
    1,279,209.64x = 1,285,362,647,194.49
  5. Step 5: Solve for x
    x = 1,285,362,647,194.49/1,279,209.64
  6. Step 6: Final answer
    x = 1,004,810.01

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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.