Home / 490,069-734,913.12-190,509.92

Finding the Fourth Proportional to 490,069, 734,913.12 and 190,509.92

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Solution

The fourth proportional to 490,069, 734,913.12 and 190,509.92 is: 285,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,069 : 734,913.12 = 190,509.92 : x
  2. Step 2: Convert to fraction form
    490,069/734,913.12 = 190,509.92/x
  3. Step 3: Cross multiply
    490,069x = 734,913.12 × 190,509.92
  4. Step 4: Simplify right side
    490,069x = 140,008,239,698.15
  5. Step 5: Solve for x
    x = 140,008,239,698.15/490,069
  6. Step 6: Final answer
    x = 285,690.87

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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.