Finding the Fourth Proportional to 717,409.29, 990,050.21 and 445,626.03
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Solution
The fourth proportional to 717,409.29, 990,050.21 and 445,626.03 is: 614,979.69
Step by Step Solution
- Step 1: Write the proportion equation
717,409.29 : 990,050.21 = 445,626.03 : x - Step 2: Convert to fraction form
717,409.29/990,050.21 = 445,626.03/x - Step 3: Cross multiply
717,409.29x = 990,050.21 × 445,626.03 - Step 4: Simplify right side
717,409.29x = 441,192,144,582.97 - Step 5: Solve for x
x = 441,192,144,582.97/717,409.29 - Step 6: Final answer
x = 614,979.69
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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.