Home / 1,605,099.20-2,215,318.29-1,219,191.98

Finding the Fourth Proportional to 1,605,099.20, 2,215,318.29 and 1,219,191.98

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Solution

The fourth proportional to 1,605,099.20, 2,215,318.29 and 1,219,191.98 is: 1,682,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,099.20 : 2,215,318.29 = 1,219,191.98 : x
  2. Step 2: Convert to fraction form
    1,605,099.20/2,215,318.29 = 1,219,191.98/x
  3. Step 3: Cross multiply
    1,605,099.20x = 2,215,318.29 × 1,219,191.98
  4. Step 4: Simplify right side
    1,605,099.20x = 2,700,898,292,315.31
  5. Step 5: Solve for x
    x = 2,700,898,292,315.31/1,605,099.20
  6. Step 6: Final answer
    x = 1,682,698.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.