Home / 1,219,339.12-1,681,591.44-789,170.80

Finding the Fourth Proportional to 1,219,339.12, 1,681,591.44 and 789,170.80

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Solution

The fourth proportional to 1,219,339.12, 1,681,591.44 and 789,170.80 is: 1,088,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,339.12 : 1,681,591.44 = 789,170.80 : x
  2. Step 2: Convert to fraction form
    1,219,339.12/1,681,591.44 = 789,170.80/x
  3. Step 3: Cross multiply
    1,219,339.12x = 1,681,591.44 × 789,170.80
  4. Step 4: Simplify right side
    1,219,339.12x = 1,327,062,861,977.95
  5. Step 5: Solve for x
    x = 1,327,062,861,977.95/1,219,339.12
  6. Step 6: Final answer
    x = 1,088,346.01

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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.