Home / 892,365.51-1,339,039.40-386,930.37

Finding the Fourth Proportional to 892,365.51, 1,339,039.40 and 386,930.37

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Solution

The fourth proportional to 892,365.51, 1,339,039.40 and 386,930.37 is: 580,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,365.51 : 1,339,039.40 = 386,930.37 : x
  2. Step 2: Convert to fraction form
    892,365.51/1,339,039.40 = 386,930.37/x
  3. Step 3: Cross multiply
    892,365.51x = 1,339,039.40 × 386,930.37
  4. Step 4: Simplify right side
    892,365.51x = 518,115,008,551.93
  5. Step 5: Solve for x
    x = 518,115,008,551.93/892,365.51
  6. Step 6: Final answer
    x = 580,608.51

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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.