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Finding the Fourth Proportional to 540,996.78, 811,569.03 and 225,379.92

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Solution

The fourth proportional to 540,996.78, 811,569.03 and 225,379.92 is: 338,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,996.78 : 811,569.03 = 225,379.92 : x
  2. Step 2: Convert to fraction form
    540,996.78/811,569.03 = 225,379.92/x
  3. Step 3: Cross multiply
    540,996.78x = 811,569.03 × 225,379.92
  4. Step 4: Simplify right side
    540,996.78x = 182,911,363,055.88
  5. Step 5: Solve for x
    x = 182,911,363,055.88/540,996.78
  6. Step 6: Final answer
    x = 338,100.65

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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.