Home / 805,855.44-1,112,057.20-443,279.48

Finding the Fourth Proportional to 805,855.44, 1,112,057.20 and 443,279.48

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Solution

The fourth proportional to 805,855.44, 1,112,057.20 and 443,279.48 is: 611,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,855.44 : 1,112,057.20 = 443,279.48 : x
  2. Step 2: Convert to fraction form
    805,855.44/1,112,057.20 = 443,279.48/x
  3. Step 3: Cross multiply
    805,855.44x = 1,112,057.20 × 443,279.48
  4. Step 4: Simplify right side
    805,855.44x = 492,952,137,346.26
  5. Step 5: Solve for x
    x = 492,952,137,346.26/805,855.44
  6. Step 6: Final answer
    x = 611,712.86

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1.5x scale

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.