Home / 680,745.76-1,021,749.16-344,023.36

Finding the Fourth Proportional to 680,745.76, 1,021,749.16 and 344,023.36

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Solution

The fourth proportional to 680,745.76, 1,021,749.16 and 344,023.36 is: 516,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,745.76 : 1,021,749.16 = 344,023.36 : x
  2. Step 2: Convert to fraction form
    680,745.76/1,021,749.16 = 344,023.36/x
  3. Step 3: Cross multiply
    680,745.76x = 1,021,749.16 × 344,023.36
  4. Step 4: Simplify right side
    680,745.76x = 351,505,579,100.38
  5. Step 5: Solve for x
    x = 351,505,579,100.38/680,745.76
  6. Step 6: Final answer
    x = 516,353.68

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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.