Home / 505,401.12-758,218.32-268,971.84

Finding the Fourth Proportional to 505,401.12, 758,218.32 and 268,971.84

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Solution

The fourth proportional to 505,401.12, 758,218.32 and 268,971.84 is: 403,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,401.12 : 758,218.32 = 268,971.84 : x
  2. Step 2: Convert to fraction form
    505,401.12/758,218.32 = 268,971.84/x
  3. Step 3: Cross multiply
    505,401.12x = 758,218.32 × 268,971.84
  4. Step 4: Simplify right side
    505,401.12x = 203,939,376,652.11
  5. Step 5: Solve for x
    x = 203,939,376,652.11/505,401.12
  6. Step 6: Final answer
    x = 403,519.84

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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.