Finding the Fourth Proportional to 2,218,465.16, 3,328,065.62 and 778,775.21
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Solution
The fourth proportional to 2,218,465.16, 3,328,065.62 and 778,775.21 is: 1,168,291.95
Step by Step Solution
- Step 1: Write the proportion equation
2,218,465.16 : 3,328,065.62 = 778,775.21 : x - Step 2: Convert to fraction form
2,218,465.16/3,328,065.62 = 778,775.21/x - Step 3: Cross multiply
2,218,465.16x = 3,328,065.62 × 778,775.21 - Step 4: Simplify right side
2,218,465.16x = 2,591,814,981,575.08 - Step 5: Solve for x
x = 2,591,814,981,575.08/2,218,465.16 - Step 6: Final answer
x = 1,168,291.95
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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.