Finding the Fourth Proportional to 717,942.24, 990,764.19 and 411,994.26
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Solution
The fourth proportional to 717,942.24, 990,764.19 and 411,994.26 is: 568,554.32
Step by Step Solution
- Step 1: Write the proportion equation
717,942.24 : 990,764.19 = 411,994.26 : x - Step 2: Convert to fraction form
717,942.24/990,764.19 = 411,994.26/x - Step 3: Cross multiply
717,942.24x = 990,764.19 × 411,994.26 - Step 4: Simplify right side
717,942.24x = 408,189,159,293.55 - Step 5: Solve for x
x = 408,189,159,293.55/717,942.24 - Step 6: Final answer
x = 568,554.32
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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.