Home / 1,179,036.55-1,768,928.69-420,861.23

Finding the Fourth Proportional to 1,179,036.55, 1,768,928.69 and 420,861.23

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Solution

The fourth proportional to 1,179,036.55, 1,768,928.69 and 420,861.23 is: 631,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,036.55 : 1,768,928.69 = 420,861.23 : x
  2. Step 2: Convert to fraction form
    1,179,036.55/1,768,928.69 = 420,861.23/x
  3. Step 3: Cross multiply
    1,179,036.55x = 1,768,928.69 × 420,861.23
  4. Step 4: Simplify right side
    1,179,036.55x = 744,473,504,255.69
  5. Step 5: Solve for x
    x = 744,473,504,255.69/1,179,036.55
  6. Step 6: Final answer
    x = 631,425.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.