Home / 1,621,197.76-2,431,838.40-768,069.76

Finding the Fourth Proportional to 1,621,197.76, 2,431,838.40 and 768,069.76

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Solution

The fourth proportional to 1,621,197.76, 2,431,838.40 and 768,069.76 is: 1,152,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,197.76 : 2,431,838.40 = 768,069.76 : x
  2. Step 2: Convert to fraction form
    1,621,197.76/2,431,838.40 = 768,069.76/x
  3. Step 3: Cross multiply
    1,621,197.76x = 2,431,838.40 × 768,069.76
  4. Step 4: Simplify right side
    1,621,197.76x = 1,867,821,536,246.78
  5. Step 5: Solve for x
    x = 1,867,821,536,246.78/1,621,197.76
  6. Step 6: Final answer
    x = 1,152,124.42

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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.