Finding the Fourth Proportional to 3,579,773.51, 4,939,992.79 and 1,948,145.84
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Solution
The fourth proportional to 3,579,773.51, 4,939,992.79 and 1,948,145.84 is: 2,688,389.75
Step by Step Solution
- Step 1: Write the proportion equation
3,579,773.51 : 4,939,992.79 = 1,948,145.84 : x - Step 2: Convert to fraction form
3,579,773.51/4,939,992.79 = 1,948,145.84/x - Step 3: Cross multiply
3,579,773.51x = 4,939,992.79 × 1,948,145.84 - Step 4: Simplify right side
3,579,773.51x = 9,623,826,410,948.11 - Step 5: Solve for x
x = 9,623,826,410,948.11/3,579,773.51 - Step 6: Final answer
x = 2,688,389.75
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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.