Finding the Fourth Proportional to 1,015,995.99, 1,521,004.38 and 678,198.79
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Solution
The fourth proportional to 1,015,995.99, 1,521,004.38 and 678,198.79 is: 1,015,302.56
Step by Step Solution
- Step 1: Write the proportion equation
1,015,995.99 : 1,521,004.38 = 678,198.79 : x - Step 2: Convert to fraction form
1,015,995.99/1,521,004.38 = 678,198.79/x - Step 3: Cross multiply
1,015,995.99x = 1,521,004.38 × 678,198.79 - Step 4: Simplify right side
1,015,995.99x = 1,031,543,330,100.70 - Step 5: Solve for x
x = 1,031,543,330,100.70/1,015,995.99 - Step 6: Final answer
x = 1,015,302.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.