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Finding the Fourth Proportional to 482,817.17, 665,824.84 and 289,193.96

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Solution

The fourth proportional to 482,817.17, 665,824.84 and 289,193.96 is: 398,810.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,817.17 : 665,824.84 = 289,193.96 : x
  2. Step 2: Convert to fraction form
    482,817.17/665,824.84 = 289,193.96/x
  3. Step 3: Cross multiply
    482,817.17x = 665,824.84 × 289,193.96
  4. Step 4: Simplify right side
    482,817.17x = 192,552,518,093.86
  5. Step 5: Solve for x
    x = 192,552,518,093.86/482,817.17
  6. Step 6: Final answer
    x = 398,810.42

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1.5x scale

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.