Home / 1,115,524.75-1,538,857.60-728,566.69

Finding the Fourth Proportional to 1,115,524.75, 1,538,857.60 and 728,566.69

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Solution

The fourth proportional to 1,115,524.75, 1,538,857.60 and 728,566.69 is: 1,005,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,524.75 : 1,538,857.60 = 728,566.69 : x
  2. Step 2: Convert to fraction form
    1,115,524.75/1,538,857.60 = 728,566.69/x
  3. Step 3: Cross multiply
    1,115,524.75x = 1,538,857.60 × 728,566.69
  4. Step 4: Simplify right side
    1,115,524.75x = 1,121,160,392,771.20
  5. Step 5: Solve for x
    x = 1,121,160,392,771.20/1,115,524.75
  6. Step 6: Final answer
    x = 1,005,052.01

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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.