Finding the Fourth Proportional to 668,163.66, 1,001,769.54 and 312,983.94
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Solution
The fourth proportional to 668,163.66, 1,001,769.54 and 312,983.94 is: 469,252.96
Step by Step Solution
- Step 1: Write the proportion equation
668,163.66 : 1,001,769.54 = 312,983.94 : x - Step 2: Convert to fraction form
668,163.66/1,001,769.54 = 312,983.94/x - Step 3: Cross multiply
668,163.66x = 1,001,769.54 × 312,983.94 - Step 4: Simplify right side
668,163.66x = 313,537,777,601.19 - Step 5: Solve for x
x = 313,537,777,601.19/668,163.66 - Step 6: Final answer
x = 469,252.96
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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.