Finding the Fourth Proportional to 717,958.49, 990,829.36 and 412,133.87
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Solution
The fourth proportional to 717,958.49, 990,829.36 and 412,133.87 is: 568,771.52
Step by Step Solution
- Step 1: Write the proportion equation
717,958.49 : 990,829.36 = 412,133.87 : x - Step 2: Convert to fraction form
717,958.49/990,829.36 = 412,133.87/x - Step 3: Cross multiply
717,958.49x = 990,829.36 × 412,133.87 - Step 4: Simplify right side
717,958.49x = 408,354,341,638.66 - Step 5: Solve for x
x = 408,354,341,638.66/717,958.49 - Step 6: Final answer
x = 568,771.52
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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.