Home / 680,965.72-1,021,614.02-207,659.48

Finding the Fourth Proportional to 680,965.72, 1,021,614.02 and 207,659.48

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Solution

The fourth proportional to 680,965.72, 1,021,614.02 and 207,659.48 is: 311,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,965.72 : 1,021,614.02 = 207,659.48 : x
  2. Step 2: Convert to fraction form
    680,965.72/1,021,614.02 = 207,659.48/x
  3. Step 3: Cross multiply
    680,965.72x = 1,021,614.02 × 207,659.48
  4. Step 4: Simplify right side
    680,965.72x = 212,147,836,153.91
  5. Step 5: Solve for x
    x = 212,147,836,153.91/680,965.72
  6. Step 6: Final answer
    x = 311,539.67

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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.