Home / 457,914.70-631,840.80-276,505.06

Finding the Fourth Proportional to 457,914.70, 631,840.80 and 276,505.06

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Solution

The fourth proportional to 457,914.70, 631,840.80 and 276,505.06 is: 381,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,914.70 : 631,840.80 = 276,505.06 : x
  2. Step 2: Convert to fraction form
    457,914.70/631,840.80 = 276,505.06/x
  3. Step 3: Cross multiply
    457,914.70x = 631,840.80 × 276,505.06
  4. Step 4: Simplify right side
    457,914.70x = 174,707,178,314.45
  5. Step 5: Solve for x
    x = 174,707,178,314.45/457,914.70
  6. Step 6: Final answer
    x = 381,527.78

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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.