Home / 820,840.56-1,233,233.64-775,523.76

Finding the Fourth Proportional to 820,840.56, 1,233,233.64 and 775,523.76

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Solution

The fourth proportional to 820,840.56, 1,233,233.64 and 775,523.76 is: 1,165,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,840.56 : 1,233,233.64 = 775,523.76 : x
  2. Step 2: Convert to fraction form
    820,840.56/1,233,233.64 = 775,523.76/x
  3. Step 3: Cross multiply
    820,840.56x = 1,233,233.64 × 775,523.76
  4. Step 4: Simplify right side
    820,840.56x = 956,401,989,451.29
  5. Step 5: Solve for x
    x = 956,401,989,451.29/820,840.56
  6. Step 6: Final answer
    x = 1,165,149.53

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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.