Finding the Fourth Proportional to 1,556,457.63, 2,147,944.33 and 877,394.13
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Solution
The fourth proportional to 1,556,457.63, 2,147,944.33 and 877,394.13 is: 1,210,822.39
Step by Step Solution
- Step 1: Write the proportion equation
1,556,457.63 : 2,147,944.33 = 877,394.13 : x - Step 2: Convert to fraction form
1,556,457.63/2,147,944.33 = 877,394.13/x - Step 3: Cross multiply
1,556,457.63x = 2,147,944.33 × 877,394.13 - Step 4: Simplify right side
1,556,457.63x = 1,884,593,746,708.78 - Step 5: Solve for x
x = 1,884,593,746,708.78/1,556,457.63 - Step 6: Final answer
x = 1,210,822.39
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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.