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Finding the Fourth Proportional to 550,512.73, 759,706.01 and 305,534.48

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Solution

The fourth proportional to 550,512.73, 759,706.01 and 305,534.48 is: 421,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,512.73 : 759,706.01 = 305,534.48 : x
  2. Step 2: Convert to fraction form
    550,512.73/759,706.01 = 305,534.48/x
  3. Step 3: Cross multiply
    550,512.73x = 759,706.01 × 305,534.48
  4. Step 4: Simplify right side
    550,512.73x = 232,116,378,465.43
  5. Step 5: Solve for x
    x = 232,116,378,465.43/550,512.73
  6. Step 6: Final answer
    x = 421,636.71

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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.