Home / 890,840.82-1,336,118.99-259,606.98

Finding the Fourth Proportional to 890,840.82, 1,336,118.99 and 259,606.98

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Solution

The fourth proportional to 890,840.82, 1,336,118.99 and 259,606.98 is: 389,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,840.82 : 1,336,118.99 = 259,606.98 : x
  2. Step 2: Convert to fraction form
    890,840.82/1,336,118.99 = 259,606.98/x
  3. Step 3: Cross multiply
    890,840.82x = 1,336,118.99 × 259,606.98
  4. Step 4: Simplify right side
    890,840.82x = 346,865,815,914.55
  5. Step 5: Solve for x
    x = 346,865,815,914.55/890,840.82
  6. Step 6: Final answer
    x = 389,369.02

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1.5x scale

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.