Home / 890,745.80-1,336,118.70-259,723.40

Finding the Fourth Proportional to 890,745.80, 1,336,118.70 and 259,723.40

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Solution

The fourth proportional to 890,745.80, 1,336,118.70 and 259,723.40 is: 389,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,745.80 : 1,336,118.70 = 259,723.40 : x
  2. Step 2: Convert to fraction form
    890,745.80/1,336,118.70 = 259,723.40/x
  3. Step 3: Cross multiply
    890,745.80x = 1,336,118.70 × 259,723.40
  4. Step 4: Simplify right side
    890,745.80x = 347,021,291,567.58
  5. Step 5: Solve for x
    x = 347,021,291,567.58/890,745.80
  6. Step 6: Final answer
    x = 389,585.10

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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.