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Finding the Fourth Proportional to 452,670.75, 679,111.16 and 132,809.72

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Solution

The fourth proportional to 452,670.75, 679,111.16 and 132,809.72 is: 199,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,670.75 : 679,111.16 = 132,809.72 : x
  2. Step 2: Convert to fraction form
    452,670.75/679,111.16 = 132,809.72/x
  3. Step 3: Cross multiply
    452,670.75x = 679,111.16 × 132,809.72
  4. Step 4: Simplify right side
    452,670.75x = 90,192,558,948.87
  5. Step 5: Solve for x
    x = 90,192,558,948.87/452,670.75
  6. Step 6: Final answer
    x = 199,245.39

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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.