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Finding the Fourth Proportional to 454,305.69, 626,942.76 and 273,020.40

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Solution

The fourth proportional to 454,305.69, 626,942.76 and 273,020.40 is: 376,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,305.69 : 626,942.76 = 273,020.40 : x
  2. Step 2: Convert to fraction form
    454,305.69/626,942.76 = 273,020.40/x
  3. Step 3: Cross multiply
    454,305.69x = 626,942.76 × 273,020.40
  4. Step 4: Simplify right side
    454,305.69x = 171,168,163,112.30
  5. Step 5: Solve for x
    x = 171,168,163,112.30/454,305.69
  6. Step 6: Final answer
    x = 376,768.70

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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.