Home / 1,678,902.80-2,518,354.20-1,419,087.20

Finding the Fourth Proportional to 1,678,902.80, 2,518,354.20 and 1,419,087.20

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Solution

The fourth proportional to 1,678,902.80, 2,518,354.20 and 1,419,087.20 is: 2,128,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,902.80 : 2,518,354.20 = 1,419,087.20 : x
  2. Step 2: Convert to fraction form
    1,678,902.80/2,518,354.20 = 1,419,087.20/x
  3. Step 3: Cross multiply
    1,678,902.80x = 2,518,354.20 × 1,419,087.20
  4. Step 4: Simplify right side
    1,678,902.80x = 3,573,764,210,286.24
  5. Step 5: Solve for x
    x = 3,573,764,210,286.24/1,678,902.80
  6. Step 6: Final answer
    x = 2,128,630.80

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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.