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Finding the Fourth Proportional to 450,937.94, 621,864.81 and 269,620.45

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Solution

The fourth proportional to 450,937.94, 621,864.81 and 269,620.45 is: 371,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,937.94 : 621,864.81 = 269,620.45 : x
  2. Step 2: Convert to fraction form
    450,937.94/621,864.81 = 269,620.45/x
  3. Step 3: Cross multiply
    450,937.94x = 621,864.81 × 269,620.45
  4. Step 4: Simplify right side
    450,937.94x = 167,667,468,356.70
  5. Step 5: Solve for x
    x = 167,667,468,356.70/450,937.94
  6. Step 6: Final answer
    x = 371,819.39

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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.