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Finding the Fourth Proportional to 388,874.44, 585,412.51 and 349,769.86

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Solution

The fourth proportional to 388,874.44, 585,412.51 and 349,769.86 is: 526,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,874.44 : 585,412.51 = 349,769.86 : x
  2. Step 2: Convert to fraction form
    388,874.44/585,412.51 = 349,769.86/x
  3. Step 3: Cross multiply
    388,874.44x = 585,412.51 × 349,769.86
  4. Step 4: Simplify right side
    388,874.44x = 204,759,651,664.95
  5. Step 5: Solve for x
    x = 204,759,651,664.95/388,874.44
  6. Step 6: Final answer
    x = 526,544.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.