Finding the Fourth Proportional to 1,186,786.08, 1,780,403.76 and 476,869.68
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Solution
The fourth proportional to 1,186,786.08, 1,780,403.76 and 476,869.68 is: 715,394.78
Step by Step Solution
- Step 1: Write the proportion equation
1,186,786.08 : 1,780,403.76 = 476,869.68 : x - Step 2: Convert to fraction form
1,186,786.08/1,780,403.76 = 476,869.68/x - Step 3: Cross multiply
1,186,786.08x = 1,780,403.76 × 476,869.68 - Step 4: Simplify right side
1,186,786.08x = 849,020,571,302.00 - Step 5: Solve for x
x = 849,020,571,302.00/1,186,786.08 - Step 6: Final answer
x = 715,394.78
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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.