Finding the Fourth Proportional to 717,874.62, 990,673.62 and 395,596.26
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Solution
The fourth proportional to 717,874.62, 990,673.62 and 395,596.26 is: 545,926.50
Step by Step Solution
- Step 1: Write the proportion equation
717,874.62 : 990,673.62 = 395,596.26 : x - Step 2: Convert to fraction form
717,874.62/990,673.62 = 395,596.26/x - Step 3: Cross multiply
717,874.62x = 990,673.62 × 395,596.26 - Step 4: Simplify right side
717,874.62x = 391,906,778,952.66 - Step 5: Solve for x
x = 391,906,778,952.66/717,874.62 - Step 6: Final answer
x = 545,926.50
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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.