Home / 1,181,279.12-1,629,294.93-890,902.80

Finding the Fourth Proportional to 1,181,279.12, 1,629,294.93 and 890,902.80

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Solution

The fourth proportional to 1,181,279.12, 1,629,294.93 and 890,902.80 is: 1,228,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,279.12 : 1,629,294.93 = 890,902.80 : x
  2. Step 2: Convert to fraction form
    1,181,279.12/1,629,294.93 = 890,902.80/x
  3. Step 3: Cross multiply
    1,181,279.12x = 1,629,294.93 × 890,902.80
  4. Step 4: Simplify right side
    1,181,279.12x = 1,451,543,415,162.80
  5. Step 5: Solve for x
    x = 1,451,543,415,162.80/1,181,279.12
  6. Step 6: Final answer
    x = 1,228,789.54

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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.