Home / 718,019.44-990,905.80-412,093.37

Finding the Fourth Proportional to 718,019.44, 990,905.80 and 412,093.37

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Solution

The fourth proportional to 718,019.44, 990,905.80 and 412,093.37 is: 568,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,019.44 : 990,905.80 = 412,093.37 : x
  2. Step 2: Convert to fraction form
    718,019.44/990,905.80 = 412,093.37/x
  3. Step 3: Cross multiply
    718,019.44x = 990,905.80 × 412,093.37
  4. Step 4: Simplify right side
    718,019.44x = 408,345,710,474.55
  5. Step 5: Solve for x
    x = 408,345,710,474.55/718,019.44
  6. Step 6: Final answer
    x = 568,711.22

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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.