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Finding the Fourth Proportional to 561,682.56, 775,527.84 and 347,116.80

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Solution

The fourth proportional to 561,682.56, 775,527.84 and 347,116.80 is: 479,272.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,682.56 : 775,527.84 = 347,116.80 : x
  2. Step 2: Convert to fraction form
    561,682.56/775,527.84 = 347,116.80/x
  3. Step 3: Cross multiply
    561,682.56x = 775,527.84 × 347,116.80
  4. Step 4: Simplify right side
    561,682.56x = 269,198,742,131.71
  5. Step 5: Solve for x
    x = 269,198,742,131.71/561,682.56
  6. Step 6: Final answer
    x = 479,272.03

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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.