Finding the Fourth Proportional to 608,390.21, 839,324.80 and 350,205.38
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Solution
The fourth proportional to 608,390.21, 839,324.80 and 350,205.38 is: 483,137.39
Step by Step Solution
- Step 1: Write the proportion equation
608,390.21 : 839,324.80 = 350,205.38 : x - Step 2: Convert to fraction form
608,390.21/839,324.80 = 350,205.38/x - Step 3: Cross multiply
608,390.21x = 839,324.80 × 350,205.38 - Step 4: Simplify right side
608,390.21x = 293,936,054,579.77 - Step 5: Solve for x
x = 293,936,054,579.77/608,390.21 - Step 6: Final answer
x = 483,137.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.