Home / 1,340,774.12-1,850,158.86-789,402.80

Finding the Fourth Proportional to 1,340,774.12, 1,850,158.86 and 789,402.80

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Solution

The fourth proportional to 1,340,774.12, 1,850,158.86 and 789,402.80 is: 1,089,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,774.12 : 1,850,158.86 = 789,402.80 : x
  2. Step 2: Convert to fraction form
    1,340,774.12/1,850,158.86 = 789,402.80/x
  3. Step 3: Cross multiply
    1,340,774.12x = 1,850,158.86 × 789,402.80
  4. Step 4: Simplify right side
    1,340,774.12x = 1,460,520,584,528.81
  5. Step 5: Solve for x
    x = 1,460,520,584,528.81/1,340,774.12
  6. Step 6: Final answer
    x = 1,089,311.44

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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.