Finding the Fourth Proportional to 1,229,486.88, 1,696,699.32 and 685,657.08
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Solution
The fourth proportional to 1,229,486.88, 1,696,699.32 and 685,657.08 is: 946,210.91
Step by Step Solution
- Step 1: Write the proportion equation
1,229,486.88 : 1,696,699.32 = 685,657.08 : x - Step 2: Convert to fraction form
1,229,486.88/1,696,699.32 = 685,657.08/x - Step 3: Cross multiply
1,229,486.88x = 1,696,699.32 × 685,657.08 - Step 4: Simplify right side
1,229,486.88x = 1,163,353,901,389.19 - Step 5: Solve for x
x = 1,163,353,901,389.19/1,229,486.88 - Step 6: Final answer
x = 946,210.91
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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.