Home / 1,215,000.60-1,821,626.10-682,684.80

Finding the Fourth Proportional to 1,215,000.60, 1,821,626.10 and 682,684.80

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Solution

The fourth proportional to 1,215,000.60, 1,821,626.10 and 682,684.80 is: 1,023,535.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,000.60 : 1,821,626.10 = 682,684.80 : x
  2. Step 2: Convert to fraction form
    1,215,000.60/1,821,626.10 = 682,684.80/x
  3. Step 3: Cross multiply
    1,215,000.60x = 1,821,626.10 × 682,684.80
  4. Step 4: Simplify right side
    1,215,000.60x = 1,243,596,449,753.28
  5. Step 5: Solve for x
    x = 1,243,596,449,753.28/1,215,000.60
  6. Step 6: Final answer
    x = 1,023,535.67

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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.