Home / 1,289,433.72-1,777,640.16-1,028,673.83

Finding the Fourth Proportional to 1,289,433.72, 1,777,640.16 and 1,028,673.83

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Solution

The fourth proportional to 1,289,433.72, 1,777,640.16 and 1,028,673.83 is: 1,418,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,433.72 : 1,777,640.16 = 1,028,673.83 : x
  2. Step 2: Convert to fraction form
    1,289,433.72/1,777,640.16 = 1,028,673.83/x
  3. Step 3: Cross multiply
    1,289,433.72x = 1,777,640.16 × 1,028,673.83
  4. Step 4: Simplify right side
    1,289,433.72x = 1,828,611,902,860.81
  5. Step 5: Solve for x
    x = 1,828,611,902,860.81/1,289,433.72
  6. Step 6: Final answer
    x = 1,418,151.14

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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.