Home / 421,986.48-582,347.72-231,017.64

Finding the Fourth Proportional to 421,986.48, 582,347.72 and 231,017.64

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Solution

The fourth proportional to 421,986.48, 582,347.72 and 231,017.64 is: 318,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,986.48 : 582,347.72 = 231,017.64 : x
  2. Step 2: Convert to fraction form
    421,986.48/582,347.72 = 231,017.64/x
  3. Step 3: Cross multiply
    421,986.48x = 582,347.72 × 231,017.64
  4. Step 4: Simplify right side
    421,986.48x = 134,532,595,933.78
  5. Step 5: Solve for x
    x = 134,532,595,933.78/421,986.48
  6. Step 6: Final answer
    x = 318,807.83

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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.