Home / 1,318,273.05-1,819,231.14-774,431.76

Finding the Fourth Proportional to 1,318,273.05, 1,819,231.14 and 774,431.76

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Solution

The fourth proportional to 1,318,273.05, 1,819,231.14 and 774,431.76 is: 1,068,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,273.05 : 1,819,231.14 = 774,431.76 : x
  2. Step 2: Convert to fraction form
    1,318,273.05/1,819,231.14 = 774,431.76/x
  3. Step 3: Cross multiply
    1,318,273.05x = 1,819,231.14 × 774,431.76
  4. Step 4: Simplify right side
    1,318,273.05x = 1,408,870,373,597.01
  5. Step 5: Solve for x
    x = 1,408,870,373,597.01/1,318,273.05
  6. Step 6: Final answer
    x = 1,068,724.25

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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.