Home / 890,748.40-1,336,122.60-259,682.80

Finding the Fourth Proportional to 890,748.40, 1,336,122.60 and 259,682.80

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Solution

The fourth proportional to 890,748.40, 1,336,122.60 and 259,682.80 is: 389,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,748.40 : 1,336,122.60 = 259,682.80 : x
  2. Step 2: Convert to fraction form
    890,748.40/1,336,122.60 = 259,682.80/x
  3. Step 3: Cross multiply
    890,748.40x = 1,336,122.60 × 259,682.80
  4. Step 4: Simplify right side
    890,748.40x = 346,968,057,911.28
  5. Step 5: Solve for x
    x = 346,968,057,911.28/890,748.40
  6. Step 6: Final answer
    x = 389,524.20

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Double scale
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Similar ratio
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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.