Home / 1,920,120.20-2,880,180.30-1,704,465.80

Finding the Fourth Proportional to 1,920,120.20, 2,880,180.30 and 1,704,465.80

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Solution

The fourth proportional to 1,920,120.20, 2,880,180.30 and 1,704,465.80 is: 2,556,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,120.20 : 2,880,180.30 = 1,704,465.80 : x
  2. Step 2: Convert to fraction form
    1,920,120.20/2,880,180.30 = 1,704,465.80/x
  3. Step 3: Cross multiply
    1,920,120.20x = 2,880,180.30 × 1,704,465.80
  4. Step 4: Simplify right side
    1,920,120.20x = 4,909,168,819,183.74
  5. Step 5: Solve for x
    x = 4,909,168,819,183.74/1,920,120.20
  6. Step 6: Final answer
    x = 2,556,698.70

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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.