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Finding the Fourth Proportional to 806,473.70, 1,112,924.94 and 443,889.80

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Solution

The fourth proportional to 806,473.70, 1,112,924.94 and 443,889.80 is: 612,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,473.70 : 1,112,924.94 = 443,889.80 : x
  2. Step 2: Convert to fraction form
    806,473.70/1,112,924.94 = 443,889.80/x
  3. Step 3: Cross multiply
    806,473.70x = 1,112,924.94 × 443,889.80
  4. Step 4: Simplify right side
    806,473.70x = 494,016,029,031.61
  5. Step 5: Solve for x
    x = 494,016,029,031.61/806,473.70
  6. Step 6: Final answer
    x = 612,563.10

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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.