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Finding the Fourth Proportional to 631,045.47, 870,843.83 and 344,559.45

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Solution

The fourth proportional to 631,045.47, 870,843.83 and 344,559.45 is: 475,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,045.47 : 870,843.83 = 344,559.45 : x
  2. Step 2: Convert to fraction form
    631,045.47/870,843.83 = 344,559.45/x
  3. Step 3: Cross multiply
    631,045.47x = 870,843.83 × 344,559.45
  4. Step 4: Simplify right side
    631,045.47x = 300,057,469,377.90
  5. Step 5: Solve for x
    x = 300,057,469,377.90/631,045.47
  6. Step 6: Final answer
    x = 475,492.63

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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.