Home / 805,815.12-1,112,027.22-443,276.04

Finding the Fourth Proportional to 805,815.12, 1,112,027.22 and 443,276.04

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Solution

The fourth proportional to 805,815.12, 1,112,027.22 and 443,276.04 is: 611,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,815.12 : 1,112,027.22 = 443,276.04 : x
  2. Step 2: Convert to fraction form
    805,815.12/1,112,027.22 = 443,276.04/x
  3. Step 3: Cross multiply
    805,815.12x = 1,112,027.22 × 443,276.04
  4. Step 4: Simplify right side
    805,815.12x = 492,935,022,453.81
  5. Step 5: Solve for x
    x = 492,935,022,453.81/805,815.12
  6. Step 6: Final answer
    x = 611,722.23

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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.