Finding the Fourth Proportional to 656,885.70, 985,717.35 and 432,893.70
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Solution
The fourth proportional to 656,885.70, 985,717.35 and 432,893.70 is: 649,596.77
Step by Step Solution
- Step 1: Write the proportion equation
656,885.70 : 985,717.35 = 432,893.70 : x - Step 2: Convert to fraction form
656,885.70/985,717.35 = 432,893.70/x - Step 3: Cross multiply
656,885.70x = 985,717.35 × 432,893.70 - Step 4: Simplify right side
656,885.70x = 426,710,830,795.70 - Step 5: Solve for x
x = 426,710,830,795.70/656,885.70 - Step 6: Final answer
x = 649,596.77
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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.