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Finding the Fourth Proportional to 661,094.82, 991,922.84 and 361,225.10

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Solution

The fourth proportional to 661,094.82, 991,922.84 and 361,225.10 is: 541,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,094.82 : 991,922.84 = 361,225.10 : x
  2. Step 2: Convert to fraction form
    661,094.82/991,922.84 = 361,225.10/x
  3. Step 3: Cross multiply
    661,094.82x = 991,922.84 × 361,225.10
  4. Step 4: Simplify right side
    661,094.82x = 358,307,420,305.54
  5. Step 5: Solve for x
    x = 358,307,420,305.54/661,094.82
  6. Step 6: Final answer
    x = 541,990.97

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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.