Home / 421,981.28-582,335.74-231,012.44

Finding the Fourth Proportional to 421,981.28, 582,335.74 and 231,012.44

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Solution

The fourth proportional to 421,981.28, 582,335.74 and 231,012.44 is: 318,798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,981.28 : 582,335.74 = 231,012.44 : x
  2. Step 2: Convert to fraction form
    421,981.28/582,335.74 = 231,012.44/x
  3. Step 3: Cross multiply
    421,981.28x = 582,335.74 × 231,012.44
  4. Step 4: Simplify right side
    421,981.28x = 134,526,801,941.21
  5. Step 5: Solve for x
    x = 134,526,801,941.21/421,981.28
  6. Step 6: Final answer
    x = 318,798.03

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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.