Home / 1,362,438.29-1,880,164.85-789,810.62

Finding the Fourth Proportional to 1,362,438.29, 1,880,164.85 and 789,810.62

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Solution

The fourth proportional to 1,362,438.29, 1,880,164.85 and 789,810.62 is: 1,089,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,438.29 : 1,880,164.85 = 789,810.62 : x
  2. Step 2: Convert to fraction form
    1,362,438.29/1,880,164.85 = 789,810.62/x
  3. Step 3: Cross multiply
    1,362,438.29x = 1,880,164.85 × 789,810.62
  4. Step 4: Simplify right side
    1,362,438.29x = 1,484,974,152,530.83
  5. Step 5: Solve for x
    x = 1,484,974,152,530.83/1,362,438.29
  6. Step 6: Final answer
    x = 1,089,938.65

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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.