Home / 1,378,904.06-1,902,365.24-855,372.71

Finding the Fourth Proportional to 1,378,904.06, 1,902,365.24 and 855,372.71

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Solution

The fourth proportional to 1,378,904.06, 1,902,365.24 and 855,372.71 is: 1,180,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,904.06 : 1,902,365.24 = 855,372.71 : x
  2. Step 2: Convert to fraction form
    1,378,904.06/1,902,365.24 = 855,372.71/x
  3. Step 3: Cross multiply
    1,378,904.06x = 1,902,365.24 × 855,372.71
  4. Step 4: Simplify right side
    1,378,904.06x = 1,627,231,296,959.91
  5. Step 5: Solve for x
    x = 1,627,231,296,959.91/1,378,904.06
  6. Step 6: Final answer
    x = 1,180,090.30

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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.