Home / 813,180.45-1,219,830.63-214,137.48

Finding the Fourth Proportional to 813,180.45, 1,219,830.63 and 214,137.48

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Solution

The fourth proportional to 813,180.45, 1,219,830.63 and 214,137.48 is: 321,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,180.45 : 1,219,830.63 = 214,137.48 : x
  2. Step 2: Convert to fraction form
    813,180.45/1,219,830.63 = 214,137.48/x
  3. Step 3: Cross multiply
    813,180.45x = 1,219,830.63 × 214,137.48
  4. Step 4: Simplify right side
    813,180.45x = 261,211,457,135.01
  5. Step 5: Solve for x
    x = 261,211,457,135.01/813,180.45
  6. Step 6: Final answer
    x = 321,222.01

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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.