Finding the Fourth Proportional to 1,229,689.44, 1,696,929.35 and 678,426.93
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Solution
The fourth proportional to 1,229,689.44, 1,696,929.35 and 678,426.93 is: 936,205.95
Step by Step Solution
- Step 1: Write the proportion equation
1,229,689.44 : 1,696,929.35 = 678,426.93 : x - Step 2: Convert to fraction form
1,229,689.44/1,696,929.35 = 678,426.93/x - Step 3: Cross multiply
1,229,689.44x = 1,696,929.35 × 678,426.93 - Step 4: Simplify right side
1,229,689.44x = 1,151,242,565,955.26 - Step 5: Solve for x
x = 1,151,242,565,955.26/1,229,689.44 - Step 6: Final answer
x = 936,205.95
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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.