Home / 890,771.80-1,336,028.10-259,619.80

Finding the Fourth Proportional to 890,771.80, 1,336,028.10 and 259,619.80

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Solution

The fourth proportional to 890,771.80, 1,336,028.10 and 259,619.80 is: 389,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,771.80 : 1,336,028.10 = 259,619.80 : x
  2. Step 2: Convert to fraction form
    890,771.80/1,336,028.10 = 259,619.80/x
  3. Step 3: Cross multiply
    890,771.80x = 1,336,028.10 × 259,619.80
  4. Step 4: Simplify right side
    890,771.80x = 346,859,348,116.38
  5. Step 5: Solve for x
    x = 346,859,348,116.38/890,771.80
  6. Step 6: Final answer
    x = 389,391.93

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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.