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Finding the Fourth Proportional to 629,954.16, 943,997.76 and 518,426.88

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Solution

The fourth proportional to 629,954.16, 943,997.76 and 518,426.88 is: 776,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,954.16 : 943,997.76 = 518,426.88 : x
  2. Step 2: Convert to fraction form
    629,954.16/943,997.76 = 518,426.88/x
  3. Step 3: Cross multiply
    629,954.16x = 943,997.76 × 518,426.88
  4. Step 4: Simplify right side
    629,954.16x = 489,393,813,443.79
  5. Step 5: Solve for x
    x = 489,393,813,443.79/629,954.16
  6. Step 6: Final answer
    x = 776,872.10

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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.