Home / 428,770.30-591,698.98-235,174.05

Finding the Fourth Proportional to 428,770.30, 591,698.98 and 235,174.05

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Solution

The fourth proportional to 428,770.30, 591,698.98 and 235,174.05 is: 324,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,770.30 : 591,698.98 = 235,174.05 : x
  2. Step 2: Convert to fraction form
    428,770.30/591,698.98 = 235,174.05/x
  3. Step 3: Cross multiply
    428,770.30x = 591,698.98 × 235,174.05
  4. Step 4: Simplify right side
    428,770.30x = 139,152,245,507.47
  5. Step 5: Solve for x
    x = 139,152,245,507.47/428,770.30
  6. Step 6: Final answer
    x = 324,537.98

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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.