Finding the Fourth Proportional to 1,313,609.70, 1,971,192.78 and 555,409.74
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Solution
The fourth proportional to 1,313,609.70, 1,971,192.78 and 555,409.74 is: 833,443.65
Step by Step Solution
- Step 1: Write the proportion equation
1,313,609.70 : 1,971,192.78 = 555,409.74 : x - Step 2: Convert to fraction form
1,313,609.70/1,971,192.78 = 555,409.74/x - Step 3: Cross multiply
1,313,609.70x = 1,971,192.78 × 555,409.74 - Step 4: Simplify right side
1,313,609.70x = 1,094,819,669,429.68 - Step 5: Solve for x
x = 1,094,819,669,429.68/1,313,609.70 - Step 6: Final answer
x = 833,443.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.