Home / 1,369,775.54-1,890,124.62-789,188.60

Finding the Fourth Proportional to 1,369,775.54, 1,890,124.62 and 789,188.60

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Solution

The fourth proportional to 1,369,775.54, 1,890,124.62 and 789,188.60 is: 1,088,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,775.54 : 1,890,124.62 = 789,188.60 : x
  2. Step 2: Convert to fraction form
    1,369,775.54/1,890,124.62 = 789,188.60/x
  3. Step 3: Cross multiply
    1,369,775.54x = 1,890,124.62 × 789,188.60
  4. Step 4: Simplify right side
    1,369,775.54x = 1,491,664,802,683.33
  5. Step 5: Solve for x
    x = 1,491,664,802,683.33/1,369,775.54
  6. Step 6: Final answer
    x = 1,088,984.84

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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.