Home / 1,430,766.78-1,974,568-819,111.37

Finding the Fourth Proportional to 1,430,766.78, 1,974,568 and 819,111.37

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Solution

The fourth proportional to 1,430,766.78, 1,974,568 and 819,111.37 is: 1,130,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,766.78 : 1,974,568 = 819,111.37 : x
  2. Step 2: Convert to fraction form
    1,430,766.78/1,974,568 = 819,111.37/x
  3. Step 3: Cross multiply
    1,430,766.78x = 1,974,568 × 819,111.37
  4. Step 4: Simplify right side
    1,430,766.78x = 1,617,391,099,638.16
  5. Step 5: Solve for x
    x = 1,617,391,099,638.16/1,430,766.78
  6. Step 6: Final answer
    x = 1,130,436.58

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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.