Home / 1,019,800.46-1,529,874.97-420,433.98

Finding the Fourth Proportional to 1,019,800.46, 1,529,874.97 and 420,433.98

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Solution

The fourth proportional to 1,019,800.46, 1,529,874.97 and 420,433.98 is: 630,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,800.46 : 1,529,874.97 = 420,433.98 : x
  2. Step 2: Convert to fraction form
    1,019,800.46/1,529,874.97 = 420,433.98/x
  3. Step 3: Cross multiply
    1,019,800.46x = 1,529,874.97 × 420,433.98
  4. Step 4: Simplify right side
    1,019,800.46x = 643,211,415,751.37
  5. Step 5: Solve for x
    x = 643,211,415,751.37/1,019,800.46
  6. Step 6: Final answer
    x = 630,722.81

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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.