Finding the Fourth Proportional to 1,368,569.16, 1,888,492.23 and 756,638.15
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Solution
The fourth proportional to 1,368,569.16, 1,888,492.23 and 756,638.15 is: 1,044,086.99
Step by Step Solution
- Step 1: Write the proportion equation
1,368,569.16 : 1,888,492.23 = 756,638.15 : x - Step 2: Convert to fraction form
1,368,569.16/1,888,492.23 = 756,638.15/x - Step 3: Cross multiply
1,368,569.16x = 1,888,492.23 × 756,638.15 - Step 4: Simplify right side
1,368,569.16x = 1,428,905,257,754.11 - Step 5: Solve for x
x = 1,428,905,257,754.11/1,368,569.16 - Step 6: Final answer
x = 1,044,086.99
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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.