Finding the Fourth Proportional to 2,165,279.97, 2,987,883.91 and 1,293,941.75
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Solution
The fourth proportional to 2,165,279.97, 2,987,883.91 and 1,293,941.75 is: 1,785,518.63
Step by Step Solution
- Step 1: Write the proportion equation
2,165,279.97 : 2,987,883.91 = 1,293,941.75 : x - Step 2: Convert to fraction form
2,165,279.97/2,987,883.91 = 1,293,941.75/x - Step 3: Cross multiply
2,165,279.97x = 2,987,883.91 × 1,293,941.75 - Step 4: Simplify right side
2,165,279.97x = 3,866,147,728,332.53 - Step 5: Solve for x
x = 3,866,147,728,332.53/2,165,279.97 - Step 6: Final answer
x = 1,785,518.63
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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.