Home / 2,673,190.80-4,009,786.20-780,123.60

Finding the Fourth Proportional to 2,673,190.80, 4,009,786.20 and 780,123.60

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Solution

The fourth proportional to 2,673,190.80, 4,009,786.20 and 780,123.60 is: 1,170,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673,190.80 : 4,009,786.20 = 780,123.60 : x
  2. Step 2: Convert to fraction form
    2,673,190.80/4,009,786.20 = 780,123.60/x
  3. Step 3: Cross multiply
    2,673,190.80x = 4,009,786.20 × 780,123.60
  4. Step 4: Simplify right side
    2,673,190.80x = 3,128,128,845,574.32
  5. Step 5: Solve for x
    x = 3,128,128,845,574.32/2,673,190.80
  6. Step 6: Final answer
    x = 1,170,185.40

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Similar ratio
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1.5x scale

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.