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Finding the Fourth Proportional to 437,517.29, 655,256.21 and 422,364.11

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Solution

The fourth proportional to 437,517.29, 655,256.21 and 422,364.11 is: 632,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,517.29 : 655,256.21 = 422,364.11 : x
  2. Step 2: Convert to fraction form
    437,517.29/655,256.21 = 422,364.11/x
  3. Step 3: Cross multiply
    437,517.29x = 655,256.21 × 422,364.11
  4. Step 4: Simplify right side
    437,517.29x = 276,756,705,484.94
  5. Step 5: Solve for x
    x = 276,756,705,484.94/437,517.29
  6. Step 6: Final answer
    x = 632,561.75

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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.