Home / 680,983.09-1,021,471.90-207,667.08

Finding the Fourth Proportional to 680,983.09, 1,021,471.90 and 207,667.08

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Solution

The fourth proportional to 680,983.09, 1,021,471.90 and 207,667.08 is: 311,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,983.09 : 1,021,471.90 = 207,667.08 : x
  2. Step 2: Convert to fraction form
    680,983.09/1,021,471.90 = 207,667.08/x
  3. Step 3: Cross multiply
    680,983.09x = 1,021,471.90 × 207,667.08
  4. Step 4: Simplify right side
    680,983.09x = 212,126,086,255.88
  5. Step 5: Solve for x
    x = 212,126,086,255.88/680,983.09
  6. Step 6: Final answer
    x = 311,499.79

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1.5x scale

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.