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Finding the Fourth Proportional to 481,996.72, 665,003.47 and 278,020.29

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Solution

The fourth proportional to 481,996.72, 665,003.47 and 278,020.29 is: 383,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,996.72 : 665,003.47 = 278,020.29 : x
  2. Step 2: Convert to fraction form
    481,996.72/665,003.47 = 278,020.29/x
  3. Step 3: Cross multiply
    481,996.72x = 665,003.47 × 278,020.29
  4. Step 4: Simplify right side
    481,996.72x = 184,884,456,190.31
  5. Step 5: Solve for x
    x = 184,884,456,190.31/481,996.72
  6. Step 6: Final answer
    x = 383,580.32

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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.