Home / 828,379.63-1,242,423.64-221,175.48

Finding the Fourth Proportional to 828,379.63, 1,242,423.64 and 221,175.48

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Solution

The fourth proportional to 828,379.63, 1,242,423.64 and 221,175.48 is: 331,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,379.63 : 1,242,423.64 = 221,175.48 : x
  2. Step 2: Convert to fraction form
    828,379.63/1,242,423.64 = 221,175.48/x
  3. Step 3: Cross multiply
    828,379.63x = 1,242,423.64 × 221,175.48
  4. Step 4: Simplify right side
    828,379.63x = 274,793,644,940.35
  5. Step 5: Solve for x
    x = 274,793,644,940.35/828,379.63
  6. Step 6: Final answer
    x = 331,724.29

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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.