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Finding the Fourth Proportional to 451,463.87, 622,805.49 and 270,139.30

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Solution

The fourth proportional to 451,463.87, 622,805.49 and 270,139.30 is: 372,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,463.87 : 622,805.49 = 270,139.30 : x
  2. Step 2: Convert to fraction form
    451,463.87/622,805.49 = 270,139.30/x
  3. Step 3: Cross multiply
    451,463.87x = 622,805.49 × 270,139.30
  4. Step 4: Simplify right side
    451,463.87x = 168,244,237,547.74
  5. Step 5: Solve for x
    x = 168,244,237,547.74/451,463.87
  6. Step 6: Final answer
    x = 372,663.79

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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.