Finding the Fourth Proportional to 665,804.51, 998,958.17 and 399,750.49
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Solution
The fourth proportional to 665,804.51, 998,958.17 and 399,750.49 is: 599,776.68
Step by Step Solution
- Step 1: Write the proportion equation
665,804.51 : 998,958.17 = 399,750.49 : x - Step 2: Convert to fraction form
665,804.51/998,958.17 = 399,750.49/x - Step 3: Cross multiply
665,804.51x = 998,958.17 × 399,750.49 - Step 4: Simplify right side
665,804.51x = 399,334,013,450.86 - Step 5: Solve for x
x = 399,334,013,450.86/665,804.51 - Step 6: Final answer
x = 599,776.68
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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.