Home / 428,174.69-590,881.53-231,941.62

Finding the Fourth Proportional to 428,174.69, 590,881.53 and 231,941.62

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Solution

The fourth proportional to 428,174.69, 590,881.53 and 231,941.62 is: 320,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,174.69 : 590,881.53 = 231,941.62 : x
  2. Step 2: Convert to fraction form
    428,174.69/590,881.53 = 231,941.62/x
  3. Step 3: Cross multiply
    428,174.69x = 590,881.53 × 231,941.62
  4. Step 4: Simplify right side
    428,174.69x = 137,050,020,104.75
  5. Step 5: Solve for x
    x = 137,050,020,104.75/428,174.69
  6. Step 6: Final answer
    x = 320,079.69

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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.