Finding the Fourth Proportional to 1,298,376.66, 1,790,594.84 and 1,081,302.32
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Solution
The fourth proportional to 1,298,376.66, 1,790,594.84 and 1,081,302.32 is: 1,491,227.02
Step by Step Solution
- Step 1: Write the proportion equation
1,298,376.66 : 1,790,594.84 = 1,081,302.32 : x - Step 2: Convert to fraction form
1,298,376.66/1,790,594.84 = 1,081,302.32/x - Step 3: Cross multiply
1,298,376.66x = 1,790,594.84 × 1,081,302.32 - Step 4: Simplify right side
1,298,376.66x = 1,936,174,354,672.03 - Step 5: Solve for x
x = 1,936,174,354,672.03/1,298,376.66 - Step 6: Final answer
x = 1,491,227.02
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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.