Home / 668,348.72-1,003,021.20-268,992.80

Finding the Fourth Proportional to 668,348.72, 1,003,021.20 and 268,992.80

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Solution

The fourth proportional to 668,348.72, 1,003,021.20 and 268,992.80 is: 403,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,348.72 : 1,003,021.20 = 268,992.80 : x
  2. Step 2: Convert to fraction form
    668,348.72/1,003,021.20 = 268,992.80/x
  3. Step 3: Cross multiply
    668,348.72x = 1,003,021.20 × 268,992.80
  4. Step 4: Simplify right side
    668,348.72x = 269,805,481,047.36
  5. Step 5: Solve for x
    x = 269,805,481,047.36/668,348.72
  6. Step 6: Final answer
    x = 403,689.68

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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.