Home / 421,986.46-582,347.74-231,017.62

Finding the Fourth Proportional to 421,986.46, 582,347.74 and 231,017.62

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Solution

The fourth proportional to 421,986.46, 582,347.74 and 231,017.62 is: 318,807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,986.46 : 582,347.74 = 231,017.62 : x
  2. Step 2: Convert to fraction form
    421,986.46/582,347.74 = 231,017.62/x
  3. Step 3: Cross multiply
    421,986.46x = 582,347.74 × 231,017.62
  4. Step 4: Simplify right side
    421,986.46x = 134,532,588,907.18
  5. Step 5: Solve for x
    x = 134,532,588,907.18/421,986.46
  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.