Finding the Fourth Proportional to 1,613,279.13, 2,226,257.01 and 878,218.10
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Solution
The fourth proportional to 1,613,279.13, 2,226,257.01 and 878,218.10 is: 1,211,903.86
Step by Step Solution
- Step 1: Write the proportion equation
1,613,279.13 : 2,226,257.01 = 878,218.10 : x - Step 2: Convert to fraction form
1,613,279.13/2,226,257.01 = 878,218.10/x - Step 3: Cross multiply
1,613,279.13x = 2,226,257.01 × 878,218.10 - Step 4: Simplify right side
1,613,279.13x = 1,955,139,207,880.44 - Step 5: Solve for x
x = 1,955,139,207,880.44/1,613,279.13 - Step 6: Final answer
x = 1,211,903.86
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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.