Home / 805,813.28-1,112,043.30-443,246.48

Finding the Fourth Proportional to 805,813.28, 1,112,043.30 and 443,246.48

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Solution

The fourth proportional to 805,813.28, 1,112,043.30 and 443,246.48 is: 611,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,813.28 : 1,112,043.30 = 443,246.48 : x
  2. Step 2: Convert to fraction form
    805,813.28/1,112,043.30 = 443,246.48/x
  3. Step 3: Cross multiply
    805,813.28x = 1,112,043.30 × 443,246.48
  4. Step 4: Simplify right side
    805,813.28x = 492,909,278,332.58
  5. Step 5: Solve for x
    x = 492,909,278,332.58/805,813.28
  6. Step 6: Final answer
    x = 611,691.68

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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.