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Finding the Fourth Proportional to 560,469.96, 840,699.39 and 256,777.97

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Solution

The fourth proportional to 560,469.96, 840,699.39 and 256,777.97 is: 385,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,469.96 : 840,699.39 = 256,777.97 : x
  2. Step 2: Convert to fraction form
    560,469.96/840,699.39 = 256,777.97/x
  3. Step 3: Cross multiply
    560,469.96x = 840,699.39 × 256,777.97
  4. Step 4: Simplify right side
    560,469.96x = 215,873,082,744.44
  5. Step 5: Solve for x
    x = 215,873,082,744.44/560,469.96
  6. Step 6: Final answer
    x = 385,164.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.