Home / 890,670.40-1,336,005.60-259,604.80

Finding the Fourth Proportional to 890,670.40, 1,336,005.60 and 259,604.80

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Solution

The fourth proportional to 890,670.40, 1,336,005.60 and 259,604.80 is: 389,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,670.40 : 1,336,005.60 = 259,604.80 : x
  2. Step 2: Convert to fraction form
    890,670.40/1,336,005.60 = 259,604.80/x
  3. Step 3: Cross multiply
    890,670.40x = 1,336,005.60 × 259,604.80
  4. Step 4: Simplify right side
    890,670.40x = 346,833,466,586.88
  5. Step 5: Solve for x
    x = 346,833,466,586.88/890,670.40
  6. Step 6: Final answer
    x = 389,407.20

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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.