Home / 428,869.56-591,866.88-247,614.72

Finding the Fourth Proportional to 428,869.56, 591,866.88 and 247,614.72

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Solution

The fourth proportional to 428,869.56, 591,866.88 and 247,614.72 is: 341,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,869.56 : 591,866.88 = 247,614.72 : x
  2. Step 2: Convert to fraction form
    428,869.56/591,866.88 = 247,614.72/x
  3. Step 3: Cross multiply
    428,869.56x = 591,866.88 × 247,614.72
  4. Step 4: Simplify right side
    428,869.56x = 146,554,951,768.47
  5. Step 5: Solve for x
    x = 146,554,951,768.47/428,869.56
  6. Step 6: Final answer
    x = 341,723.84

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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.