Home / 1,289,865.56-1,775,948.76-1,170,291.33

Finding the Fourth Proportional to 1,289,865.56, 1,775,948.76 and 1,170,291.33

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Solution

The fourth proportional to 1,289,865.56, 1,775,948.76 and 1,170,291.33 is: 1,611,313.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,865.56 : 1,775,948.76 = 1,170,291.33 : x
  2. Step 2: Convert to fraction form
    1,289,865.56/1,775,948.76 = 1,170,291.33/x
  3. Step 3: Cross multiply
    1,289,865.56x = 1,775,948.76 × 1,170,291.33
  4. Step 4: Simplify right side
    1,289,865.56x = 2,078,377,436,352.25
  5. Step 5: Solve for x
    x = 2,078,377,436,352.25/1,289,865.56
  6. Step 6: Final answer
    x = 1,611,313.23

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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.