Home / 807,942.80-1,211,136.60-627,928.40

Finding the Fourth Proportional to 807,942.80, 1,211,136.60 and 627,928.40

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Solution

The fourth proportional to 807,942.80, 1,211,136.60 and 627,928.40 is: 941,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,942.80 : 1,211,136.60 = 627,928.40 : x
  2. Step 2: Convert to fraction form
    807,942.80/1,211,136.60 = 627,928.40/x
  3. Step 3: Cross multiply
    807,942.80x = 1,211,136.60 × 627,928.40
  4. Step 4: Simplify right side
    807,942.80x = 760,507,067,419.44
  5. Step 5: Solve for x
    x = 760,507,067,419.44/807,942.80
  6. Step 6: Final answer
    x = 941,288.25

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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.