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Finding the Fourth Proportional to 675,990.78, 1,014,514.56 and 297,173.22

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Solution

The fourth proportional to 675,990.78, 1,014,514.56 and 297,173.22 is: 445,992.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,990.78 : 1,014,514.56 = 297,173.22 : x
  2. Step 2: Convert to fraction form
    675,990.78/1,014,514.56 = 297,173.22/x
  3. Step 3: Cross multiply
    675,990.78x = 1,014,514.56 × 297,173.22
  4. Step 4: Simplify right side
    675,990.78x = 301,486,558,532.08
  5. Step 5: Solve for x
    x = 301,486,558,532.08/675,990.78
  6. Step 6: Final answer
    x = 445,992.12

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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.