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Finding the Fourth Proportional to 551,322.74, 827,129.91 and 298,490.96

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Solution

The fourth proportional to 551,322.74, 827,129.91 and 298,490.96 is: 447,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,322.74 : 827,129.91 = 298,490.96 : x
  2. Step 2: Convert to fraction form
    551,322.74/827,129.91 = 298,490.96/x
  3. Step 3: Cross multiply
    551,322.74x = 827,129.91 × 298,490.96
  4. Step 4: Simplify right side
    551,322.74x = 246,890,800,880.61
  5. Step 5: Solve for x
    x = 246,890,800,880.61/551,322.74
  6. Step 6: Final answer
    x = 447,815.38

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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.