Finding the Fourth Proportional to 2,124,207.72, 2,930,067.18 and 1,264,125.96
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Solution
The fourth proportional to 2,124,207.72, 2,930,067.18 and 1,264,125.96 is: 1,743,696.70
Step by Step Solution
- Step 1: Write the proportion equation
2,124,207.72 : 2,930,067.18 = 1,264,125.96 : x - Step 2: Convert to fraction form
2,124,207.72/2,930,067.18 = 1,264,125.96/x - Step 3: Cross multiply
2,124,207.72x = 2,930,067.18 × 1,264,125.96 - Step 4: Simplify right side
2,124,207.72x = 3,703,973,986,781.99 - Step 5: Solve for x
x = 3,703,973,986,781.99/2,124,207.72 - Step 6: Final answer
x = 1,743,696.70
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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.