Finding the Fourth Proportional to 1,646,402.12, 2,469,603.18 and 1,085,305.40
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Solution
The fourth proportional to 1,646,402.12, 2,469,603.18 and 1,085,305.40 is: 1,627,958.10
Step by Step Solution
- Step 1: Write the proportion equation
1,646,402.12 : 2,469,603.18 = 1,085,305.40 : x - Step 2: Convert to fraction form
1,646,402.12/2,469,603.18 = 1,085,305.40/x - Step 3: Cross multiply
1,646,402.12x = 2,469,603.18 × 1,085,305.40 - Step 4: Simplify right side
1,646,402.12x = 2,680,273,667,111.17 - Step 5: Solve for x
x = 2,680,273,667,111.17/1,646,402.12 - Step 6: Final answer
x = 1,627,958.10
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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.