Home / 774,687.01-1,159,874.97-394,788.64

Finding the Fourth Proportional to 774,687.01, 1,159,874.97 and 394,788.64

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Solution

The fourth proportional to 774,687.01, 1,159,874.97 and 394,788.64 is: 591,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,687.01 : 1,159,874.97 = 394,788.64 : x
  2. Step 2: Convert to fraction form
    774,687.01/1,159,874.97 = 394,788.64/x
  3. Step 3: Cross multiply
    774,687.01x = 1,159,874.97 × 394,788.64
  4. Step 4: Simplify right side
    774,687.01x = 457,905,461,976.34
  5. Step 5: Solve for x
    x = 457,905,461,976.34/774,687.01
  6. Step 6: Final answer
    x = 591,084.47

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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.