Finding the Fourth Proportional to 1,280,718.29, 1,767,394.05 and 699,950.72
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Solution
The fourth proportional to 1,280,718.29, 1,767,394.05 and 699,950.72 is: 965,933.53
Step by Step Solution
- Step 1: Write the proportion equation
1,280,718.29 : 1,767,394.05 = 699,950.72 : x - Step 2: Convert to fraction form
1,280,718.29/1,767,394.05 = 699,950.72/x - Step 3: Cross multiply
1,280,718.29x = 1,767,394.05 × 699,950.72 - Step 4: Simplify right side
1,280,718.29x = 1,237,088,735,579.13 - Step 5: Solve for x
x = 1,237,088,735,579.13/1,280,718.29 - Step 6: Final answer
x = 965,933.53
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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.