Home / 715,544.42-987,462.83-409,619.57

Finding the Fourth Proportional to 715,544.42, 987,462.83 and 409,619.57

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Solution

The fourth proportional to 715,544.42, 987,462.83 and 409,619.57 is: 565,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,544.42 : 987,462.83 = 409,619.57 : x
  2. Step 2: Convert to fraction form
    715,544.42/987,462.83 = 409,619.57/x
  3. Step 3: Cross multiply
    715,544.42x = 987,462.83 × 409,619.57
  4. Step 4: Simplify right side
    715,544.42x = 404,484,100,236.14
  5. Step 5: Solve for x
    x = 404,484,100,236.14/715,544.42
  6. Step 6: Final answer
    x = 565,281.61

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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.