Home / 787,343-1,181,201.82-254,864.12

Finding the Fourth Proportional to 787,343, 1,181,201.82 and 254,864.12

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Solution

The fourth proportional to 787,343, 1,181,201.82 and 254,864.12 is: 382,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,343 : 1,181,201.82 = 254,864.12 : x
  2. Step 2: Convert to fraction form
    787,343/1,181,201.82 = 254,864.12/x
  3. Step 3: Cross multiply
    787,343x = 1,181,201.82 × 254,864.12
  4. Step 4: Simplify right side
    787,343x = 301,045,962,396.70
  5. Step 5: Solve for x
    x = 301,045,962,396.70/787,343
  6. Step 6: Final answer
    x = 382,356.82

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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.