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Finding the Fourth Proportional to 455,696.47, 682,950.16 and 329,760.91

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Solution

The fourth proportional to 455,696.47, 682,950.16 and 329,760.91 is: 494,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,696.47 : 682,950.16 = 329,760.91 : x
  2. Step 2: Convert to fraction form
    455,696.47/682,950.16 = 329,760.91/x
  3. Step 3: Cross multiply
    455,696.47x = 682,950.16 × 329,760.91
  4. Step 4: Simplify right side
    455,696.47x = 225,210,264,951.07
  5. Step 5: Solve for x
    x = 225,210,264,951.07/455,696.47
  6. Step 6: Final answer
    x = 494,211.13

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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.