Home / 476,436.80-713,618.40-289,121.60

Finding the Fourth Proportional to 476,436.80, 713,618.40 and 289,121.60

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Solution

The fourth proportional to 476,436.80, 713,618.40 and 289,121.60 is: 433,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,436.80 : 713,618.40 = 289,121.60 : x
  2. Step 2: Convert to fraction form
    476,436.80/713,618.40 = 289,121.60/x
  3. Step 3: Cross multiply
    476,436.80x = 713,618.40 × 289,121.60
  4. Step 4: Simplify right side
    476,436.80x = 206,322,493,597.44
  5. Step 5: Solve for x
    x = 206,322,493,597.44/476,436.80
  6. Step 6: Final answer
    x = 433,053.23

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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.