Home / 1,368,402.51-1,888,390.73-764,790.51

Finding the Fourth Proportional to 1,368,402.51, 1,888,390.73 and 764,790.51

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Solution

The fourth proportional to 1,368,402.51, 1,888,390.73 and 764,790.51 is: 1,055,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,402.51 : 1,888,390.73 = 764,790.51 : x
  2. Step 2: Convert to fraction form
    1,368,402.51/1,888,390.73 = 764,790.51/x
  3. Step 3: Cross multiply
    1,368,402.51x = 1,888,390.73 × 764,790.51
  4. Step 4: Simplify right side
    1,368,402.51x = 1,444,223,309,475.97
  5. Step 5: Solve for x
    x = 1,444,223,309,475.97/1,368,402.51
  6. Step 6: Final answer
    x = 1,055,408.26

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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.