Home / 680,608.00-1,021,542.13-343,885.64

Finding the Fourth Proportional to 680,608.00, 1,021,542.13 and 343,885.64

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Solution

The fourth proportional to 680,608.00, 1,021,542.13 and 343,885.64 is: 516,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,608.00 : 1,021,542.13 = 343,885.64 : x
  2. Step 2: Convert to fraction form
    680,608.00/1,021,542.13 = 343,885.64/x
  3. Step 3: Cross multiply
    680,608.00x = 1,021,542.13 × 343,885.64
  4. Step 4: Simplify right side
    680,608.00x = 351,293,664,484.16
  5. Step 5: Solve for x
    x = 351,293,664,484.16/680,608.00
  6. Step 6: Final answer
    x = 516,146.83

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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.