Home / 1,369,771.54-1,890,119.10-789,184.60

Finding the Fourth Proportional to 1,369,771.54, 1,890,119.10 and 789,184.60

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Solution

The fourth proportional to 1,369,771.54, 1,890,119.10 and 789,184.60 is: 1,088,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,771.54 : 1,890,119.10 = 789,184.60 : x
  2. Step 2: Convert to fraction form
    1,369,771.54/1,890,119.10 = 789,184.60/x
  3. Step 3: Cross multiply
    1,369,771.54x = 1,890,119.10 × 789,184.60
  4. Step 4: Simplify right side
    1,369,771.54x = 1,491,652,885,885.86
  5. Step 5: Solve for x
    x = 1,491,652,885,885.86/1,369,771.54
  6. Step 6: Final answer
    x = 1,088,979.32

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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.