Home / 890,745.30-1,336,117.95-259,722.90

Finding the Fourth Proportional to 890,745.30, 1,336,117.95 and 259,722.90

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Solution

The fourth proportional to 890,745.30, 1,336,117.95 and 259,722.90 is: 389,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,745.30 : 1,336,117.95 = 259,722.90 : x
  2. Step 2: Convert to fraction form
    890,745.30/1,336,117.95 = 259,722.90/x
  3. Step 3: Cross multiply
    890,745.30x = 1,336,117.95 × 259,722.90
  4. Step 4: Simplify right side
    890,745.30x = 347,020,428,716.06
  5. Step 5: Solve for x
    x = 347,020,428,716.06/890,745.30
  6. Step 6: Final answer
    x = 389,584.35

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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.