Home / 814,892.45-1,222,344.78-309,317.12

Finding the Fourth Proportional to 814,892.45, 1,222,344.78 and 309,317.12

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Solution

The fourth proportional to 814,892.45, 1,222,344.78 and 309,317.12 is: 463,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,892.45 : 1,222,344.78 = 309,317.12 : x
  2. Step 2: Convert to fraction form
    814,892.45/1,222,344.78 = 309,317.12/x
  3. Step 3: Cross multiply
    814,892.45x = 1,222,344.78 × 309,317.12
  4. Step 4: Simplify right side
    814,892.45x = 378,092,166,996.63
  5. Step 5: Solve for x
    x = 378,092,166,996.63/814,892.45
  6. Step 6: Final answer
    x = 463,978.00

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1.5x scale

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.