Finding the Fourth Proportional to 2,159,082.08, 2,979,518.64 and 1,192,273.28
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Solution
The fourth proportional to 2,159,082.08, 2,979,518.64 and 1,192,273.28 is: 1,645,329.05
Step by Step Solution
- Step 1: Write the proportion equation
2,159,082.08 : 2,979,518.64 = 1,192,273.28 : x - Step 2: Convert to fraction form
2,159,082.08/2,979,518.64 = 1,192,273.28/x - Step 3: Cross multiply
2,159,082.08x = 2,979,518.64 × 1,192,273.28 - Step 4: Simplify right side
2,159,082.08x = 3,552,400,461,733.94 - Step 5: Solve for x
x = 3,552,400,461,733.94/2,159,082.08 - Step 6: Final answer
x = 1,645,329.05
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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.