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Finding the Fourth Proportional to 455,696.84, 682,950.72 and 329,761.28

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Solution

The fourth proportional to 455,696.84, 682,950.72 and 329,761.28 is: 494,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,696.84 : 682,950.72 = 329,761.28 : x
  2. Step 2: Convert to fraction form
    455,696.84/682,950.72 = 329,761.28/x
  3. Step 3: Cross multiply
    455,696.84x = 682,950.72 × 329,761.28
  4. Step 4: Simplify right side
    455,696.84x = 225,210,706,548.10
  5. Step 5: Solve for x
    x = 225,210,706,548.10/455,696.84
  6. Step 6: Final answer
    x = 494,211.69

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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.