Home / 1,368,401.39-1,888,389.18-764,789.39

Finding the Fourth Proportional to 1,368,401.39, 1,888,389.18 and 764,789.39

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Solution

The fourth proportional to 1,368,401.39, 1,888,389.18 and 764,789.39 is: 1,055,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,401.39 : 1,888,389.18 = 764,789.39 : x
  2. Step 2: Convert to fraction form
    1,368,401.39/1,888,389.18 = 764,789.39/x
  3. Step 3: Cross multiply
    1,368,401.39x = 1,888,389.18 × 764,789.39
  4. Step 4: Simplify right side
    1,368,401.39x = 1,444,219,999,612.85
  5. Step 5: Solve for x
    x = 1,444,219,999,612.85/1,368,401.39
  6. Step 6: Final answer
    x = 1,055,406.71

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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.