Home / 509,936.82-703,730.08-280,511.16

Finding the Fourth Proportional to 509,936.82, 703,730.08 and 280,511.16

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Solution

The fourth proportional to 509,936.82, 703,730.08 and 280,511.16 is: 387,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,936.82 : 703,730.08 = 280,511.16 : x
  2. Step 2: Convert to fraction form
    509,936.82/703,730.08 = 280,511.16/x
  3. Step 3: Cross multiply
    509,936.82x = 703,730.08 × 280,511.16
  4. Step 4: Simplify right side
    509,936.82x = 197,404,141,067.69
  5. Step 5: Solve for x
    x = 197,404,141,067.69/509,936.82
  6. Step 6: Final answer
    x = 387,114.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.