Home / 680,861.70-1,021,292.55-207,546.30

Finding the Fourth Proportional to 680,861.70, 1,021,292.55 and 207,546.30

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Solution

The fourth proportional to 680,861.70, 1,021,292.55 and 207,546.30 is: 311,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,861.70 : 1,021,292.55 = 207,546.30 : x
  2. Step 2: Convert to fraction form
    680,861.70/1,021,292.55 = 207,546.30/x
  3. Step 3: Cross multiply
    680,861.70x = 1,021,292.55 × 207,546.30
  4. Step 4: Simplify right side
    680,861.70x = 211,965,489,970.07
  5. Step 5: Solve for x
    x = 211,965,489,970.07/680,861.70
  6. Step 6: Final answer
    x = 311,319.45

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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.