Home / 1,219,112.66-1,828,756.64-420,382.67

Finding the Fourth Proportional to 1,219,112.66, 1,828,756.64 and 420,382.67

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Solution

The fourth proportional to 1,219,112.66, 1,828,756.64 and 420,382.67 is: 630,604.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,112.66 : 1,828,756.64 = 420,382.67 : x
  2. Step 2: Convert to fraction form
    1,219,112.66/1,828,756.64 = 420,382.67/x
  3. Step 3: Cross multiply
    1,219,112.66x = 1,828,756.64 × 420,382.67
  4. Step 4: Simplify right side
    1,219,112.66x = 768,777,603,869.05
  5. Step 5: Solve for x
    x = 768,777,603,869.05/1,219,112.66
  6. Step 6: Final answer
    x = 630,604.23

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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.