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Finding the Fourth Proportional to 481,390.24, 664,230 and 277,412.56

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Solution

The fourth proportional to 481,390.24, 664,230 and 277,412.56 is: 382,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,390.24 : 664,230 = 277,412.56 : x
  2. Step 2: Convert to fraction form
    481,390.24/664,230 = 277,412.56/x
  3. Step 3: Cross multiply
    481,390.24x = 664,230 × 277,412.56
  4. Step 4: Simplify right side
    481,390.24x = 184,265,744,728.80
  5. Step 5: Solve for x
    x = 184,265,744,728.80/481,390.24
  6. Step 6: Final answer
    x = 382,778.31

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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.