Home / 680,912.80-1,021,466.40-231,654.40

Finding the Fourth Proportional to 680,912.80, 1,021,466.40 and 231,654.40

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Solution

The fourth proportional to 680,912.80, 1,021,466.40 and 231,654.40 is: 347,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,912.80 : 1,021,466.40 = 231,654.40 : x
  2. Step 2: Convert to fraction form
    680,912.80/1,021,466.40 = 231,654.40/x
  3. Step 3: Cross multiply
    680,912.80x = 1,021,466.40 × 231,654.40
  4. Step 4: Simplify right side
    680,912.80x = 236,627,186,012.16
  5. Step 5: Solve for x
    x = 236,627,186,012.16/680,912.80
  6. Step 6: Final answer
    x = 347,514.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.