Home / 1,272,357.75-1,755,857.34-728,501.88

Finding the Fourth Proportional to 1,272,357.75, 1,755,857.34 and 728,501.88

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Solution

The fourth proportional to 1,272,357.75, 1,755,857.34 and 728,501.88 is: 1,005,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,357.75 : 1,755,857.34 = 728,501.88 : x
  2. Step 2: Convert to fraction form
    1,272,357.75/1,755,857.34 = 728,501.88/x
  3. Step 3: Cross multiply
    1,272,357.75x = 1,755,857.34 × 728,501.88
  4. Step 4: Simplify right side
    1,272,357.75x = 1,279,145,373,201.80
  5. Step 5: Solve for x
    x = 1,279,145,373,201.80/1,272,357.75
  6. Step 6: Final answer
    x = 1,005,334.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.