Home / 680,664.47-1,021,628.24-343,941.59

Finding the Fourth Proportional to 680,664.47, 1,021,628.24 and 343,941.59

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Solution

The fourth proportional to 680,664.47, 1,021,628.24 and 343,941.59 is: 516,231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,664.47 : 1,021,628.24 = 343,941.59 : x
  2. Step 2: Convert to fraction form
    680,664.47/1,021,628.24 = 343,941.59/x
  3. Step 3: Cross multiply
    680,664.47x = 1,021,628.24 × 343,941.59
  4. Step 4: Simplify right side
    680,664.47x = 351,380,438,560.12
  5. Step 5: Solve for x
    x = 351,380,438,560.12/680,664.47
  6. Step 6: Final answer
    x = 516,231.49

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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.