Home / 1,368,446.38-1,888,423.39-764,890.54

Finding the Fourth Proportional to 1,368,446.38, 1,888,423.39 and 764,890.54

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Solution

The fourth proportional to 1,368,446.38, 1,888,423.39 and 764,890.54 is: 1,055,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,446.38 : 1,888,423.39 = 764,890.54 : x
  2. Step 2: Convert to fraction form
    1,368,446.38/1,888,423.39 = 764,890.54/x
  3. Step 3: Cross multiply
    1,368,446.38x = 1,888,423.39 × 764,890.54
  4. Step 4: Simplify right side
    1,368,446.38x = 1,444,437,186,525.73
  5. Step 5: Solve for x
    x = 1,444,437,186,525.73/1,368,446.38
  6. Step 6: Final answer
    x = 1,055,530.72

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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.