Home / 680,727.78-1,021,722.12-344,005.38

Finding the Fourth Proportional to 680,727.78, 1,021,722.12 and 344,005.38

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Solution

The fourth proportional to 680,727.78, 1,021,722.12 and 344,005.38 is: 516,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,727.78 : 1,021,722.12 = 344,005.38 : x
  2. Step 2: Convert to fraction form
    680,727.78/1,021,722.12 = 344,005.38/x
  3. Step 3: Cross multiply
    680,727.78x = 1,021,722.12 × 344,005.38
  4. Step 4: Simplify right side
    680,727.78x = 351,477,906,145.01
  5. Step 5: Solve for x
    x = 351,477,906,145.01/680,727.78
  6. Step 6: Final answer
    x = 516,326.67

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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.