Home / 890,743.36-1,336,336.48-259,662.72

Finding the Fourth Proportional to 890,743.36, 1,336,336.48 and 259,662.72

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Solution

The fourth proportional to 890,743.36, 1,336,336.48 and 259,662.72 is: 389,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,743.36 : 1,336,336.48 = 259,662.72 : x
  2. Step 2: Convert to fraction form
    890,743.36/1,336,336.48 = 259,662.72/x
  3. Step 3: Cross multiply
    890,743.36x = 1,336,336.48 × 259,662.72
  4. Step 4: Simplify right side
    890,743.36x = 346,996,765,232.03
  5. Step 5: Solve for x
    x = 346,996,765,232.03/890,743.36
  6. Step 6: Final answer
    x = 389,558.63

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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.