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Finding the Fourth Proportional to 648,147.23, 894,309.63 and 372,451.79

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Solution

The fourth proportional to 648,147.23, 894,309.63 and 372,451.79 is: 513,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,147.23 : 894,309.63 = 372,451.79 : x
  2. Step 2: Convert to fraction form
    648,147.23/894,309.63 = 372,451.79/x
  3. Step 3: Cross multiply
    648,147.23x = 894,309.63 × 372,451.79
  4. Step 4: Simplify right side
    648,147.23x = 333,087,222,507.74
  5. Step 5: Solve for x
    x = 333,087,222,507.74/648,147.23
  6. Step 6: Final answer
    x = 513,906.73

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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.