Home / 2,118,874.72-3,178,410-699,054.88

Finding the Fourth Proportional to 2,118,874.72, 3,178,410 and 699,054.88

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Solution

The fourth proportional to 2,118,874.72, 3,178,410 and 699,054.88 is: 1,048,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,874.72 : 3,178,410 = 699,054.88 : x
  2. Step 2: Convert to fraction form
    2,118,874.72/3,178,410 = 699,054.88/x
  3. Step 3: Cross multiply
    2,118,874.72x = 3,178,410 × 699,054.88
  4. Step 4: Simplify right side
    2,118,874.72x = 2,221,883,021,140.80
  5. Step 5: Solve for x
    x = 2,221,883,021,140.80/2,118,874.72
  6. Step 6: Final answer
    x = 1,048,614.63

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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.