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Finding the Fourth Proportional to 715,992.70, 988,105.43 and 444,148.18

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Solution

The fourth proportional to 715,992.70, 988,105.43 and 444,148.18 is: 612,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,992.70 : 988,105.43 = 444,148.18 : x
  2. Step 2: Convert to fraction form
    715,992.70/988,105.43 = 444,148.18/x
  3. Step 3: Cross multiply
    715,992.70x = 988,105.43 × 444,148.18
  4. Step 4: Simplify right side
    715,992.70x = 438,865,227,022.72
  5. Step 5: Solve for x
    x = 438,865,227,022.72/715,992.70
  6. Step 6: Final answer
    x = 612,946.51

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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.