Home / 890,912.32-1,336,238.88-259,656.64

Finding the Fourth Proportional to 890,912.32, 1,336,238.88 and 259,656.64

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Solution

The fourth proportional to 890,912.32, 1,336,238.88 and 259,656.64 is: 389,447.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,912.32 : 1,336,238.88 = 259,656.64 : x
  2. Step 2: Convert to fraction form
    890,912.32/1,336,238.88 = 259,656.64/x
  3. Step 3: Cross multiply
    890,912.32x = 1,336,238.88 × 259,656.64
  4. Step 4: Simplify right side
    890,912.32x = 346,963,297,818.16
  5. Step 5: Solve for x
    x = 346,963,297,818.16/890,912.32
  6. Step 6: Final answer
    x = 389,447.19

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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.