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Finding the Fourth Proportional to 428,608.58, 591,360.06 and 337,682.70

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Solution

The fourth proportional to 428,608.58, 591,360.06 and 337,682.70 is: 465,907.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,608.58 : 591,360.06 = 337,682.70 : x
  2. Step 2: Convert to fraction form
    428,608.58/591,360.06 = 337,682.70/x
  3. Step 3: Cross multiply
    428,608.58x = 591,360.06 × 337,682.70
  4. Step 4: Simplify right side
    428,608.58x = 199,692,061,732.96
  5. Step 5: Solve for x
    x = 199,692,061,732.96/428,608.58
  6. Step 6: Final answer
    x = 465,907.76

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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.