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Finding the Fourth Proportional to 476,694.80, 657,843.57 and 258,907.73

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Solution

The fourth proportional to 476,694.80, 657,843.57 and 258,907.73 is: 357,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,694.80 : 657,843.57 = 258,907.73 : x
  2. Step 2: Convert to fraction form
    476,694.80/657,843.57 = 258,907.73/x
  3. Step 3: Cross multiply
    476,694.80x = 657,843.57 × 258,907.73
  4. Step 4: Simplify right side
    476,694.80x = 170,320,785,403.80
  5. Step 5: Solve for x
    x = 170,320,785,403.80/476,694.80
  6. Step 6: Final answer
    x = 357,295.25

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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.