Home / 1,434,664.78-1,979,773.44-822,378.50

Finding the Fourth Proportional to 1,434,664.78, 1,979,773.44 and 822,378.50

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Solution

The fourth proportional to 1,434,664.78, 1,979,773.44 and 822,378.50 is: 1,134,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,664.78 : 1,979,773.44 = 822,378.50 : x
  2. Step 2: Convert to fraction form
    1,434,664.78/1,979,773.44 = 822,378.50/x
  3. Step 3: Cross multiply
    1,434,664.78x = 1,979,773.44 × 822,378.50
  4. Step 4: Simplify right side
    1,434,664.78x = 1,628,123,111,927.04
  5. Step 5: Solve for x
    x = 1,628,123,111,927.04/1,434,664.78
  6. Step 6: Final answer
    x = 1,134,845.67

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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.