Finding the Fourth Proportional to 3,643,668.30, 5,465,502.45 and 1,279,764.30
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Solution
The fourth proportional to 3,643,668.30, 5,465,502.45 and 1,279,764.30 is: 1,919,646.45
Step by Step Solution
- Step 1: Write the proportion equation
3,643,668.30 : 5,465,502.45 = 1,279,764.30 : x - Step 2: Convert to fraction form
3,643,668.30/5,465,502.45 = 1,279,764.30/x - Step 3: Cross multiply
3,643,668.30x = 5,465,502.45 × 1,279,764.30 - Step 4: Simplify right side
3,643,668.30x = 6,994,554,917,072.54 - Step 5: Solve for x
x = 6,994,554,917,072.54/3,643,668.30 - Step 6: Final answer
x = 1,919,646.45
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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.