Home / 806,508.21-1,112,938.92-443,862.75

Finding the Fourth Proportional to 806,508.21, 1,112,938.92 and 443,862.75

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Solution

The fourth proportional to 806,508.21, 1,112,938.92 and 443,862.75 is: 612,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,508.21 : 1,112,938.92 = 443,862.75 : x
  2. Step 2: Convert to fraction form
    806,508.21/1,112,938.92 = 443,862.75/x
  3. Step 3: Cross multiply
    806,508.21x = 1,112,938.92 × 443,862.75
  4. Step 4: Simplify right side
    806,508.21x = 493,992,129,613.23
  5. Step 5: Solve for x
    x = 493,992,129,613.23/806,508.21
  6. Step 6: Final answer
    x = 612,507.25

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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.