Home / 715,781.56-1,073,679.71-210,351.53

Finding the Fourth Proportional to 715,781.56, 1,073,679.71 and 210,351.53

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Solution

The fourth proportional to 715,781.56, 1,073,679.71 and 210,351.53 is: 315,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,781.56 : 1,073,679.71 = 210,351.53 : x
  2. Step 2: Convert to fraction form
    715,781.56/1,073,679.71 = 210,351.53/x
  3. Step 3: Cross multiply
    715,781.56x = 1,073,679.71 × 210,351.53
  4. Step 4: Simplify right side
    715,781.56x = 225,850,171,360.90
  5. Step 5: Solve for x
    x = 225,850,171,360.90/715,781.56
  6. Step 6: Final answer
    x = 315,529.46

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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.