Home / 805,222.12-1,207,082.28-272,372.38

Finding the Fourth Proportional to 805,222.12, 1,207,082.28 and 272,372.38

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Solution

The fourth proportional to 805,222.12, 1,207,082.28 and 272,372.38 is: 408,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,222.12 : 1,207,082.28 = 272,372.38 : x
  2. Step 2: Convert to fraction form
    805,222.12/1,207,082.28 = 272,372.38/x
  3. Step 3: Cross multiply
    805,222.12x = 1,207,082.28 × 272,372.38
  4. Step 4: Simplify right side
    805,222.12x = 328,775,873,459.43
  5. Step 5: Solve for x
    x = 328,775,873,459.43/805,222.12
  6. Step 6: Final answer
    x = 408,304.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.