Home / 2,119,399.90-3,178,115.70-920,705.20

Finding the Fourth Proportional to 2,119,399.90, 3,178,115.70 and 920,705.20

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Solution

The fourth proportional to 2,119,399.90, 3,178,115.70 and 920,705.20 is: 1,380,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,399.90 : 3,178,115.70 = 920,705.20 : x
  2. Step 2: Convert to fraction form
    2,119,399.90/3,178,115.70 = 920,705.20/x
  3. Step 3: Cross multiply
    2,119,399.90x = 3,178,115.70 × 920,705.20
  4. Step 4: Simplify right side
    2,119,399.90x = 2,926,107,651,191.64
  5. Step 5: Solve for x
    x = 2,926,107,651,191.64/2,119,399.90
  6. Step 6: Final answer
    x = 1,380,630.27

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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.