Finding the Fourth Proportional to 1,613,579.20, 2,226,720.99 and 888,412.12
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Solution
The fourth proportional to 1,613,579.20, 2,226,720.99 and 888,412.12 is: 1,225,998.65
Step by Step Solution
- Step 1: Write the proportion equation
1,613,579.20 : 2,226,720.99 = 888,412.12 : x - Step 2: Convert to fraction form
1,613,579.20/2,226,720.99 = 888,412.12/x - Step 3: Cross multiply
1,613,579.20x = 2,226,720.99 × 888,412.12 - Step 4: Simplify right side
1,613,579.20x = 1,978,245,915,374.40 - Step 5: Solve for x
x = 1,978,245,915,374.40/1,613,579.20 - Step 6: Final answer
x = 1,225,998.65
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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.