Home / 1,339,922.40-1,849,099.80-728,076.72

Finding the Fourth Proportional to 1,339,922.40, 1,849,099.80 and 728,076.72

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Solution

The fourth proportional to 1,339,922.40, 1,849,099.80 and 728,076.72 is: 1,004,749.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,922.40 : 1,849,099.80 = 728,076.72 : x
  2. Step 2: Convert to fraction form
    1,339,922.40/1,849,099.80 = 728,076.72/x
  3. Step 3: Cross multiply
    1,339,922.40x = 1,849,099.80 × 728,076.72
  4. Step 4: Simplify right side
    1,339,922.40x = 1,346,286,517,336.66
  5. Step 5: Solve for x
    x = 1,346,286,517,336.66/1,339,922.40
  6. Step 6: Final answer
    x = 1,004,749.62

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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.