Home / 1,215,685.38-1,821,898.04-946,138.98

Finding the Fourth Proportional to 1,215,685.38, 1,821,898.04 and 946,138.98

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Solution

The fourth proportional to 1,215,685.38, 1,821,898.04 and 946,138.98 is: 1,417,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,685.38 : 1,821,898.04 = 946,138.98 : x
  2. Step 2: Convert to fraction form
    1,215,685.38/1,821,898.04 = 946,138.98/x
  3. Step 3: Cross multiply
    1,215,685.38x = 1,821,898.04 × 946,138.98
  4. Step 4: Simplify right side
    1,215,685.38x = 1,723,768,753,229.60
  5. Step 5: Solve for x
    x = 1,723,768,753,229.60/1,215,685.38
  6. Step 6: Final answer
    x = 1,417,939.86

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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.