Home / 1,147,885.96-1,583,423.22-717,418.78

Finding the Fourth Proportional to 1,147,885.96, 1,583,423.22 and 717,418.78

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Solution

The fourth proportional to 1,147,885.96, 1,583,423.22 and 717,418.78 is: 989,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,885.96 : 1,583,423.22 = 717,418.78 : x
  2. Step 2: Convert to fraction form
    1,147,885.96/1,583,423.22 = 717,418.78/x
  3. Step 3: Cross multiply
    1,147,885.96x = 1,583,423.22 × 717,418.78
  4. Step 4: Simplify right side
    1,147,885.96x = 1,135,977,554,716.07
  5. Step 5: Solve for x
    x = 1,135,977,554,716.07/1,147,885.96
  6. Step 6: Final answer
    x = 989,625.79

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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.