Home / 1,311,688.51-1,810,259.28-767,791.33

Finding the Fourth Proportional to 1,311,688.51, 1,810,259.28 and 767,791.33

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Solution

The fourth proportional to 1,311,688.51, 1,810,259.28 and 767,791.33 is: 1,059,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,688.51 : 1,810,259.28 = 767,791.33 : x
  2. Step 2: Convert to fraction form
    1,311,688.51/1,810,259.28 = 767,791.33/x
  3. Step 3: Cross multiply
    1,311,688.51x = 1,810,259.28 × 767,791.33
  4. Step 4: Simplify right side
    1,311,688.51x = 1,389,901,380,236.04
  5. Step 5: Solve for x
    x = 1,389,901,380,236.04/1,311,688.51
  6. Step 6: Final answer
    x = 1,059,627.62

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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.