Finding the Fourth Proportional to 2,186,391.12, 3,017,230.86 and 1,206,364.02
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Solution
The fourth proportional to 2,186,391.12, 3,017,230.86 and 1,206,364.02 is: 1,664,788.48
Step by Step Solution
- Step 1: Write the proportion equation
2,186,391.12 : 3,017,230.86 = 1,206,364.02 : x - Step 2: Convert to fraction form
2,186,391.12/3,017,230.86 = 1,206,364.02/x - Step 3: Cross multiply
2,186,391.12x = 3,017,230.86 × 1,206,364.02 - Step 4: Simplify right side
2,186,391.12x = 3,639,878,749,537.66 - Step 5: Solve for x
x = 3,639,878,749,537.66/2,186,391.12 - Step 6: Final answer
x = 1,664,788.48
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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.