Finding the Fourth Proportional to 1,368,722.80, 1,888,767.48 and 765,110.80
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Solution
The fourth proportional to 1,368,722.80, 1,888,767.48 and 765,110.80 is: 1,055,813.78
Step by Step Solution
- Step 1: Write the proportion equation
1,368,722.80 : 1,888,767.48 = 765,110.80 : x - Step 2: Convert to fraction form
1,368,722.80/1,888,767.48 = 765,110.80/x - Step 3: Cross multiply
1,368,722.80x = 1,888,767.48 × 765,110.80 - Step 4: Simplify right side
1,368,722.80x = 1,445,116,397,636.78 - Step 5: Solve for x
x = 1,445,116,397,636.78/1,368,722.80 - Step 6: Final answer
x = 1,055,813.78
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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.