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Finding the Fourth Proportional to 476,759.75, 657,653.37 and 285,662.40

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Solution

The fourth proportional to 476,759.75, 657,653.37 and 285,662.40 is: 394,049.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,759.75 : 657,653.37 = 285,662.40 : x
  2. Step 2: Convert to fraction form
    476,759.75/657,653.37 = 285,662.40/x
  3. Step 3: Cross multiply
    476,759.75x = 657,653.37 × 285,662.40
  4. Step 4: Simplify right side
    476,759.75x = 187,866,840,042.29
  5. Step 5: Solve for x
    x = 187,866,840,042.29/476,759.75
  6. Step 6: Final answer
    x = 394,049.29

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1.5x scale

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.