Home / 680,655.96-1,021,614.12-343,933.56

Finding the Fourth Proportional to 680,655.96, 1,021,614.12 and 343,933.56

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Solution

The fourth proportional to 680,655.96, 1,021,614.12 and 343,933.56 is: 516,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,655.96 : 1,021,614.12 = 343,933.56 : x
  2. Step 2: Convert to fraction form
    680,655.96/1,021,614.12 = 343,933.56/x
  3. Step 3: Cross multiply
    680,655.96x = 1,021,614.12 × 343,933.56
  4. Step 4: Simplify right side
    680,655.96x = 351,367,381,237.87
  5. Step 5: Solve for x
    x = 351,367,381,237.87/680,655.96
  6. Step 6: Final answer
    x = 516,218.77

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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.