Home / 421,985.46-582,346.35-231,016.62

Finding the Fourth Proportional to 421,985.46, 582,346.35 and 231,016.62

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Solution

The fourth proportional to 421,985.46, 582,346.35 and 231,016.62 is: 318,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,985.46 : 582,346.35 = 231,016.62 : x
  2. Step 2: Convert to fraction form
    421,985.46/582,346.35 = 231,016.62/x
  3. Step 3: Cross multiply
    421,985.46x = 582,346.35 × 231,016.62
  4. Step 4: Simplify right side
    421,985.46x = 134,531,685,446.34
  5. Step 5: Solve for x
    x = 134,531,685,446.34/421,985.46
  6. Step 6: Final answer
    x = 318,806.45

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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.