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Finding the Fourth Proportional to 551,490.30, 827,235.45 and 298,891.80

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Solution

The fourth proportional to 551,490.30, 827,235.45 and 298,891.80 is: 448,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,490.30 : 827,235.45 = 298,891.80 : x
  2. Step 2: Convert to fraction form
    551,490.30/827,235.45 = 298,891.80/x
  3. Step 3: Cross multiply
    551,490.30x = 827,235.45 × 298,891.80
  4. Step 4: Simplify right side
    551,490.30x = 247,253,892,674.31
  5. Step 5: Solve for x
    x = 247,253,892,674.31/551,490.30
  6. Step 6: Final answer
    x = 448,337.70

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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.