Home / 857,818.02-1,286,736.28-258,784.36

Finding the Fourth Proportional to 857,818.02, 1,286,736.28 and 258,784.36

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Solution

The fourth proportional to 857,818.02, 1,286,736.28 and 258,784.36 is: 388,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,818.02 : 1,286,736.28 = 258,784.36 : x
  2. Step 2: Convert to fraction form
    857,818.02/1,286,736.28 = 258,784.36/x
  3. Step 3: Cross multiply
    857,818.02x = 1,286,736.28 × 258,784.36
  4. Step 4: Simplify right side
    857,818.02x = 332,987,224,708.58
  5. Step 5: Solve for x
    x = 332,987,224,708.58/857,818.02
  6. Step 6: Final answer
    x = 388,179.33

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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.