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Finding the Fourth Proportional to 656,873.37, 906,484.86 and 355,067.37

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Solution

The fourth proportional to 656,873.37, 906,484.86 and 355,067.37 is: 489,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,873.37 : 906,484.86 = 355,067.37 : x
  2. Step 2: Convert to fraction form
    656,873.37/906,484.86 = 355,067.37/x
  3. Step 3: Cross multiply
    656,873.37x = 906,484.86 × 355,067.37
  4. Step 4: Simplify right side
    656,873.37x = 321,863,195,185.02
  5. Step 5: Solve for x
    x = 321,863,195,185.02/656,873.37
  6. Step 6: Final answer
    x = 489,992.76

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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.