Finding the Fourth Proportional to 1,267,081.97, 1,900,220.55 and 413,959.19
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Solution
The fourth proportional to 1,267,081.97, 1,900,220.55 and 413,959.19 is: 620,807.32
Step by Step Solution
- Step 1: Write the proportion equation
1,267,081.97 : 1,900,220.55 = 413,959.19 : x - Step 2: Convert to fraction form
1,267,081.97/1,900,220.55 = 413,959.19/x - Step 3: Cross multiply
1,267,081.97x = 1,900,220.55 × 413,959.19 - Step 4: Simplify right side
1,267,081.97x = 786,613,759,699.36 - Step 5: Solve for x
x = 786,613,759,699.36/1,267,081.97 - Step 6: Final answer
x = 620,807.32
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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.