Home / 890,304.40-1,335,456.60-259,238.80

Finding the Fourth Proportional to 890,304.40, 1,335,456.60 and 259,238.80

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Solution

The fourth proportional to 890,304.40, 1,335,456.60 and 259,238.80 is: 388,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,304.40 : 1,335,456.60 = 259,238.80 : x
  2. Step 2: Convert to fraction form
    890,304.40/1,335,456.60 = 259,238.80/x
  3. Step 3: Cross multiply
    890,304.40x = 1,335,456.60 × 259,238.80
  4. Step 4: Simplify right side
    890,304.40x = 346,202,166,436.08
  5. Step 5: Solve for x
    x = 346,202,166,436.08/890,304.40
  6. Step 6: Final answer
    x = 388,858.20

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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.