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Finding the Fourth Proportional to 631,042.30, 870,834.92 and 344,560.33

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Solution

The fourth proportional to 631,042.30, 870,834.92 and 344,560.33 is: 475,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,042.30 : 870,834.92 = 344,560.33 : x
  2. Step 2: Convert to fraction form
    631,042.30/870,834.92 = 344,560.33/x
  3. Step 3: Cross multiply
    631,042.30x = 870,834.92 × 344,560.33
  4. Step 4: Simplify right side
    631,042.30x = 300,055,168,714.62
  5. Step 5: Solve for x
    x = 300,055,168,714.62/631,042.30
  6. Step 6: Final answer
    x = 475,491.37

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1.5x scale

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.