Home / 1,362,280.16-1,879,945.92-789,652.16

Finding the Fourth Proportional to 1,362,280.16, 1,879,945.92 and 789,652.16

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Solution

The fourth proportional to 1,362,280.16, 1,879,945.92 and 789,652.16 is: 1,089,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,280.16 : 1,879,945.92 = 789,652.16 : x
  2. Step 2: Convert to fraction form
    1,362,280.16/1,879,945.92 = 789,652.16/x
  3. Step 3: Cross multiply
    1,362,280.16x = 1,879,945.92 × 789,652.16
  4. Step 4: Simplify right side
    1,362,280.16x = 1,484,503,356,411.19
  5. Step 5: Solve for x
    x = 1,484,503,356,411.19/1,362,280.16
  6. Step 6: Final answer
    x = 1,089,719.57

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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.