Finding the Fourth Proportional to 1,556,207.15, 2,147,582.22 and 877,143.65
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Solution
The fourth proportional to 1,556,207.15, 2,147,582.22 and 877,143.65 is: 1,210,467.45
Step by Step Solution
- Step 1: Write the proportion equation
1,556,207.15 : 2,147,582.22 = 877,143.65 : x - Step 2: Convert to fraction form
1,556,207.15/2,147,582.22 = 877,143.65/x - Step 3: Cross multiply
1,556,207.15x = 2,147,582.22 × 877,143.65 - Step 4: Simplify right side
1,556,207.15x = 1,883,738,107,125.90 - Step 5: Solve for x
x = 1,883,738,107,125.90/1,556,207.15 - Step 6: Final answer
x = 1,210,467.45
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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.