Finding the Fourth Proportional to 665,013.68, 997,660.81 and 215,699.66
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Solution
The fourth proportional to 665,013.68, 997,660.81 and 215,699.66 is: 323,594.99
Step by Step Solution
- Step 1: Write the proportion equation
665,013.68 : 997,660.81 = 215,699.66 : x - Step 2: Convert to fraction form
665,013.68/997,660.81 = 215,699.66/x - Step 3: Cross multiply
665,013.68x = 997,660.81 × 215,699.66 - Step 4: Simplify right side
665,013.68x = 215,195,092,524.02 - Step 5: Solve for x
x = 215,195,092,524.02/665,013.68 - Step 6: Final answer
x = 323,594.99
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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.