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Finding the Fourth Proportional to 631,051.72, 870,846.82 and 344,571.56

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Solution

The fourth proportional to 631,051.72, 870,846.82 and 344,571.56 is: 475,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,051.72 : 870,846.82 = 344,571.56 : x
  2. Step 2: Convert to fraction form
    631,051.72/870,846.82 = 344,571.56/x
  3. Step 3: Cross multiply
    631,051.72x = 870,846.82 × 344,571.56
  4. Step 4: Simplify right side
    631,051.72x = 300,069,047,288.44
  5. Step 5: Solve for x
    x = 300,069,047,288.44/631,051.72
  6. Step 6: Final answer
    x = 475,506.27

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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.