Finding the Fourth Proportional to 1,198,811.79, 1,789,472.81 and 1,047,474.09
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Solution
The fourth proportional to 1,198,811.79, 1,789,472.81 and 1,047,474.09 is: 1,563,570.21
Step by Step Solution
- Step 1: Write the proportion equation
1,198,811.79 : 1,789,472.81 = 1,047,474.09 : x - Step 2: Convert to fraction form
1,198,811.79/1,789,472.81 = 1,047,474.09/x - Step 3: Cross multiply
1,198,811.79x = 1,789,472.81 × 1,047,474.09 - Step 4: Simplify right side
1,198,811.79x = 1,874,426,405,853.18 - Step 5: Solve for x
x = 1,874,426,405,853.18/1,198,811.79 - Step 6: Final answer
x = 1,563,570.21
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.