Home / 2,118,700.80-3,178,051.20-1,276,819.20

Finding the Fourth Proportional to 2,118,700.80, 3,178,051.20 and 1,276,819.20

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Solution

The fourth proportional to 2,118,700.80, 3,178,051.20 and 1,276,819.20 is: 1,915,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,700.80 : 3,178,051.20 = 1,276,819.20 : x
  2. Step 2: Convert to fraction form
    2,118,700.80/3,178,051.20 = 1,276,819.20/x
  3. Step 3: Cross multiply
    2,118,700.80x = 3,178,051.20 × 1,276,819.20
  4. Step 4: Simplify right side
    2,118,700.80x = 4,057,796,790,743.04
  5. Step 5: Solve for x
    x = 4,057,796,790,743.04/2,118,700.80
  6. Step 6: Final answer
    x = 1,915,228.80

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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.