Home / 774,279.64-1,161,416.94-205,717.60

Finding the Fourth Proportional to 774,279.64, 1,161,416.94 and 205,717.60

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Solution

The fourth proportional to 774,279.64, 1,161,416.94 and 205,717.60 is: 308,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,279.64 : 1,161,416.94 = 205,717.60 : x
  2. Step 2: Convert to fraction form
    774,279.64/1,161,416.94 = 205,717.60/x
  3. Step 3: Cross multiply
    774,279.64x = 1,161,416.94 × 205,717.60
  4. Step 4: Simplify right side
    774,279.64x = 238,923,905,496.14
  5. Step 5: Solve for x
    x = 238,923,905,496.14/774,279.64
  6. Step 6: Final answer
    x = 308,575.73

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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.