Home / 325,917.40-487,709.70-297,923.80

Finding the Fourth Proportional to 325,917.40, 487,709.70 and 297,923.80

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Solution

The fourth proportional to 325,917.40, 487,709.70 and 297,923.80 is: 445,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,917.40 : 487,709.70 = 297,923.80 : x
  2. Step 2: Convert to fraction form
    325,917.40/487,709.70 = 297,923.80/x
  3. Step 3: Cross multiply
    325,917.40x = 487,709.70 × 297,923.80
  4. Step 4: Simplify right side
    325,917.40x = 145,300,327,120.86
  5. Step 5: Solve for x
    x = 145,300,327,120.86/325,917.40
  6. Step 6: Final answer
    x = 445,819.48

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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.