Home / 787,263.09-1,086,527.21-443,165.64

Finding the Fourth Proportional to 787,263.09, 1,086,527.21 and 443,165.64

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Solution

The fourth proportional to 787,263.09, 1,086,527.21 and 443,165.64 is: 611,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,263.09 : 1,086,527.21 = 443,165.64 : x
  2. Step 2: Convert to fraction form
    787,263.09/1,086,527.21 = 443,165.64/x
  3. Step 3: Cross multiply
    787,263.09x = 1,086,527.21 × 443,165.64
  4. Step 4: Simplify right side
    787,263.09x = 481,511,526,397.06
  5. Step 5: Solve for x
    x = 481,511,526,397.06/787,263.09
  6. Step 6: Final answer
    x = 611,627.21

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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.