Home / 677,880.36-1,016,216.46-257,451.48

Finding the Fourth Proportional to 677,880.36, 1,016,216.46 and 257,451.48

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Solution

The fourth proportional to 677,880.36, 1,016,216.46 and 257,451.48 is: 385,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,880.36 : 1,016,216.46 = 257,451.48 : x
  2. Step 2: Convert to fraction form
    677,880.36/1,016,216.46 = 257,451.48/x
  3. Step 3: Cross multiply
    677,880.36x = 1,016,216.46 × 257,451.48
  4. Step 4: Simplify right side
    677,880.36x = 261,626,431,627.36
  5. Step 5: Solve for x
    x = 261,626,431,627.36/677,880.36
  6. Step 6: Final answer
    x = 385,947.80

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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.