Home / 490,126.12-733,905.66-321,114.76

Finding the Fourth Proportional to 490,126.12, 733,905.66 and 321,114.76

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Solution

The fourth proportional to 490,126.12, 733,905.66 and 321,114.76 is: 480,831.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,126.12 : 733,905.66 = 321,114.76 : x
  2. Step 2: Convert to fraction form
    490,126.12/733,905.66 = 321,114.76/x
  3. Step 3: Cross multiply
    490,126.12x = 733,905.66 × 321,114.76
  4. Step 4: Simplify right side
    490,126.12x = 235,667,939,873.54
  5. Step 5: Solve for x
    x = 235,667,939,873.54/490,126.12
  6. Step 6: Final answer
    x = 480,831.22

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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.