Finding the Fourth Proportional to 1,369,221.84, 1,889,509.86 and 757,419.53
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Solution
The fourth proportional to 1,369,221.84, 1,889,509.86 and 757,419.53 is: 1,045,229.94
Step by Step Solution
- Step 1: Write the proportion equation
1,369,221.84 : 1,889,509.86 = 757,419.53 : x - Step 2: Convert to fraction form
1,369,221.84/1,889,509.86 = 757,419.53/x - Step 3: Cross multiply
1,369,221.84x = 1,889,509.86 × 757,419.53 - Step 4: Simplify right side
1,369,221.84x = 1,431,151,660,644.02 - Step 5: Solve for x
x = 1,431,151,660,644.02/1,369,221.84 - Step 6: Final answer
x = 1,045,229.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.