Finding the Fourth Proportional to 2,887,921.16, 3,985,205.64 and 1,598,684.66
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Solution
The fourth proportional to 2,887,921.16, 3,985,205.64 and 1,598,684.66 is: 2,206,115.32
Step by Step Solution
- Step 1: Write the proportion equation
2,887,921.16 : 3,985,205.64 = 1,598,684.66 : x - Step 2: Convert to fraction form
2,887,921.16/3,985,205.64 = 1,598,684.66/x - Step 3: Cross multiply
2,887,921.16x = 3,985,205.64 × 1,598,684.66 - Step 4: Simplify right side
2,887,921.16x = 6,371,087,123,613.48 - Step 5: Solve for x
x = 6,371,087,123,613.48/2,887,921.16 - Step 6: Final answer
x = 2,206,115.32
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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.