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Finding the Fourth Proportional to 631,054.49, 870,851.72 and 344,572.54

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Solution

The fourth proportional to 631,054.49, 870,851.72 and 344,572.54 is: 475,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,054.49 : 870,851.72 = 344,572.54 : x
  2. Step 2: Convert to fraction form
    631,054.49/870,851.72 = 344,572.54/x
  3. Step 3: Cross multiply
    631,054.49x = 870,851.72 × 344,572.54
  4. Step 4: Simplify right side
    631,054.49x = 300,071,587,808.07
  5. Step 5: Solve for x
    x = 300,071,587,808.07/631,054.49
  6. Step 6: Final answer
    x = 475,508.21

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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.