Finding the Fourth Proportional to 418,723.09, 628,088.52 and 119,203.63
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Solution
The fourth proportional to 418,723.09, 628,088.52 and 119,203.63 is: 178,806.55
Step by Step Solution
- Step 1: Write the proportion equation
418,723.09 : 628,088.52 = 119,203.63 : x - Step 2: Convert to fraction form
418,723.09/628,088.52 = 119,203.63/x - Step 3: Cross multiply
418,723.09x = 628,088.52 × 119,203.63 - Step 4: Simplify right side
418,723.09x = 74,870,431,545.33 - Step 5: Solve for x
x = 74,870,431,545.33/418,723.09 - Step 6: Final answer
x = 178,806.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.