Finding the Fourth Proportional to 1,182,585.24, 1,631,967.12 and 638,720.82
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Solution
The fourth proportional to 1,182,585.24, 1,631,967.12 and 638,720.82 is: 881,434.46
Step by Step Solution
- Step 1: Write the proportion equation
1,182,585.24 : 1,631,967.12 = 638,720.82 : x - Step 2: Convert to fraction form
1,182,585.24/1,631,967.12 = 638,720.82/x - Step 3: Cross multiply
1,182,585.24x = 1,631,967.12 × 638,720.82 - Step 4: Simplify right side
1,182,585.24x = 1,042,371,377,099.44 - Step 5: Solve for x
x = 1,042,371,377,099.44/1,182,585.24 - Step 6: Final answer
x = 881,434.46
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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.