Finding the Fourth Proportional to 2,117,745.12, 2,922,183.99 and 1,246,061.59
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Solution
The fourth proportional to 2,117,745.12, 2,922,183.99 and 1,246,061.59 is: 1,719,385.96
Step by Step Solution
- Step 1: Write the proportion equation
2,117,745.12 : 2,922,183.99 = 1,246,061.59 : x - Step 2: Convert to fraction form
2,117,745.12/2,922,183.99 = 1,246,061.59/x - Step 3: Cross multiply
2,117,745.12x = 2,922,183.99 × 1,246,061.59 - Step 4: Simplify right side
2,117,745.12x = 3,641,221,228,851.95 - Step 5: Solve for x
x = 3,641,221,228,851.95/2,117,745.12 - Step 6: Final answer
x = 1,719,385.96
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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.