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Finding the Fourth Proportional to 531,121.82, 796,918.22 and 278,342.22

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Solution

The fourth proportional to 531,121.82, 796,918.22 and 278,342.22 is: 417,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,121.82 : 796,918.22 = 278,342.22 : x
  2. Step 2: Convert to fraction form
    531,121.82/796,918.22 = 278,342.22/x
  3. Step 3: Cross multiply
    531,121.82x = 796,918.22 × 278,342.22
  4. Step 4: Simplify right side
    531,121.82x = 221,815,985,121.54
  5. Step 5: Solve for x
    x = 221,815,985,121.54/531,121.82
  6. Step 6: Final answer
    x = 417,636.74

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1.5x scale

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.