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Finding the Fourth Proportional to 482,406.09, 665,108.60 and 344,749.43

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Solution

The fourth proportional to 482,406.09, 665,108.60 and 344,749.43 is: 475,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,406.09 : 665,108.60 = 344,749.43 : x
  2. Step 2: Convert to fraction form
    482,406.09/665,108.60 = 344,749.43/x
  3. Step 3: Cross multiply
    482,406.09x = 665,108.60 × 344,749.43
  4. Step 4: Simplify right side
    482,406.09x = 229,295,805,688.81
  5. Step 5: Solve for x
    x = 229,295,805,688.81/482,406.09
  6. Step 6: Final answer
    x = 475,316.98

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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.