Home / 2,119,234.20-3,178,851.30-698,947.80

Finding the Fourth Proportional to 2,119,234.20, 3,178,851.30 and 698,947.80

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Solution

The fourth proportional to 2,119,234.20, 3,178,851.30 and 698,947.80 is: 1,048,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,234.20 : 3,178,851.30 = 698,947.80 : x
  2. Step 2: Convert to fraction form
    2,119,234.20/3,178,851.30 = 698,947.80/x
  3. Step 3: Cross multiply
    2,119,234.20x = 3,178,851.30 × 698,947.80
  4. Step 4: Simplify right side
    2,119,234.20x = 2,221,851,122,662.14
  5. Step 5: Solve for x
    x = 2,221,851,122,662.14/2,119,234.20
  6. Step 6: Final answer
    x = 1,048,421.70

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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.