Finding the Fourth Proportional to 690,753.80, 1,036,130.70 and 192,117.80
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Solution
The fourth proportional to 690,753.80, 1,036,130.70 and 192,117.80 is: 288,176.70
Step by Step Solution
- Step 1: Write the proportion equation
690,753.80 : 1,036,130.70 = 192,117.80 : x - Step 2: Convert to fraction form
690,753.80/1,036,130.70 = 192,117.80/x - Step 3: Cross multiply
690,753.80x = 1,036,130.70 × 192,117.80 - Step 4: Simplify right side
690,753.80x = 199,059,150,596.46 - Step 5: Solve for x
x = 199,059,150,596.46/690,753.80 - Step 6: Final answer
x = 288,176.70
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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.