Home / 631,020.04-870,819.78-344,551.48

Finding the Fourth Proportional to 631,020.04, 870,819.78 and 344,551.48

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Solution

The fourth proportional to 631,020.04, 870,819.78 and 344,551.48 is: 475,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,020.04 : 870,819.78 = 344,551.48 : x
  2. Step 2: Convert to fraction form
    631,020.04/870,819.78 = 344,551.48/x
  3. Step 3: Cross multiply
    631,020.04x = 870,819.78 × 344,551.48
  4. Step 4: Simplify right side
    631,020.04x = 300,042,244,012.27
  5. Step 5: Solve for x
    x = 300,042,244,012.27/631,020.04
  6. Step 6: Final answer
    x = 475,487.66

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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.