Finding the Fourth Proportional to 2,087,909.97, 2,881,268.21 and 1,216,690.17
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Solution
The fourth proportional to 2,087,909.97, 2,881,268.21 and 1,216,690.17 is: 1,679,004.72
Step by Step Solution
- Step 1: Write the proportion equation
2,087,909.97 : 2,881,268.21 = 1,216,690.17 : x - Step 2: Convert to fraction form
2,087,909.97/2,881,268.21 = 1,216,690.17/x - Step 3: Cross multiply
2,087,909.97x = 2,881,268.21 × 1,216,690.17 - Step 4: Simplify right side
2,087,909.97x = 3,505,610,702,157.05 - Step 5: Solve for x
x = 3,505,610,702,157.05/2,087,909.97 - Step 6: Final answer
x = 1,679,004.72
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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.