Finding the Fourth Proportional to 781,559.91, 1,078,755.44 and 442,224.99
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Solution
The fourth proportional to 781,559.91, 1,078,755.44 and 442,224.99 is: 610,385.21
Step by Step Solution
- Step 1: Write the proportion equation
781,559.91 : 1,078,755.44 = 442,224.99 : x - Step 2: Convert to fraction form
781,559.91/1,078,755.44 = 442,224.99/x - Step 3: Cross multiply
781,559.91x = 1,078,755.44 × 442,224.99 - Step 4: Simplify right side
781,559.91x = 477,052,611,455.32 - Step 5: Solve for x
x = 477,052,611,455.32/781,559.91 - Step 6: Final answer
x = 610,385.21
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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.