Finding the Fourth Proportional to 781,749.84, 1,078,804.44 and 442,218
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Solution
The fourth proportional to 781,749.84, 1,078,804.44 and 442,218 is: 610,254.99
Step by Step Solution
- Step 1: Write the proportion equation
781,749.84 : 1,078,804.44 = 442,218 : x - Step 2: Convert to fraction form
781,749.84/1,078,804.44 = 442,218/x - Step 3: Cross multiply
781,749.84x = 1,078,804.44 × 442,218 - Step 4: Simplify right side
781,749.84x = 477,066,741,847.92 - Step 5: Solve for x
x = 477,066,741,847.92/781,749.84 - Step 6: Final answer
x = 610,254.99
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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.