Home / 928,782.88-1,282,085.39-622,747.78

Finding the Fourth Proportional to 928,782.88, 1,282,085.39 and 622,747.78

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Solution

The fourth proportional to 928,782.88, 1,282,085.39 and 622,747.78 is: 859,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,782.88 : 1,282,085.39 = 622,747.78 : x
  2. Step 2: Convert to fraction form
    928,782.88/1,282,085.39 = 622,747.78/x
  3. Step 3: Cross multiply
    928,782.88x = 1,282,085.39 × 622,747.78
  4. Step 4: Simplify right side
    928,782.88x = 798,415,828,744.59
  5. Step 5: Solve for x
    x = 798,415,828,744.59/928,782.88
  6. Step 6: Final answer
    x = 859,636.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.