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Finding the Fourth Proportional to 453,605.44, 679,630.56 and 320,247.04

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Solution

The fourth proportional to 453,605.44, 679,630.56 and 320,247.04 is: 479,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,605.44 : 679,630.56 = 320,247.04 : x
  2. Step 2: Convert to fraction form
    453,605.44/679,630.56 = 320,247.04/x
  3. Step 3: Cross multiply
    453,605.44x = 679,630.56 × 320,247.04
  4. Step 4: Simplify right side
    453,605.44x = 217,649,675,133.54
  5. Step 5: Solve for x
    x = 217,649,675,133.54/453,605.44
  6. Step 6: Final answer
    x = 479,821.57

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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.