Finding the Fourth Proportional to 658,441.74, 987,655.41 and 159,805.74
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Solution
The fourth proportional to 658,441.74, 987,655.41 and 159,805.74 is: 239,706.86
Step by Step Solution
- Step 1: Write the proportion equation
658,441.74 : 987,655.41 = 159,805.74 : x - Step 2: Convert to fraction form
658,441.74/987,655.41 = 159,805.74/x - Step 3: Cross multiply
658,441.74x = 987,655.41 × 159,805.74 - Step 4: Simplify right side
658,441.74x = 157,833,003,660.05 - Step 5: Solve for x
x = 157,833,003,660.05/658,441.74 - Step 6: Final answer
x = 239,706.86
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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.