Home / 828,663.35-1,243,021.76-229,630.28

Finding the Fourth Proportional to 828,663.35, 1,243,021.76 and 229,630.28

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Solution

The fourth proportional to 828,663.35, 1,243,021.76 and 229,630.28 is: 344,452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,663.35 : 1,243,021.76 = 229,630.28 : x
  2. Step 2: Convert to fraction form
    828,663.35/1,243,021.76 = 229,630.28/x
  3. Step 3: Cross multiply
    828,663.35x = 1,243,021.76 × 229,630.28
  4. Step 4: Simplify right side
    828,663.35x = 285,435,427,431.63
  5. Step 5: Solve for x
    x = 285,435,427,431.63/828,663.35
  6. Step 6: Final answer
    x = 344,452.82

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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.