Finding the Fourth Proportional to 809,766.92, 1,117,944.84 and 538,203.08
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Solution
The fourth proportional to 809,766.92, 1,117,944.84 and 538,203.08 is: 743,030.30
Step by Step Solution
- Step 1: Write the proportion equation
809,766.92 : 1,117,944.84 = 538,203.08 : x - Step 2: Convert to fraction form
809,766.92/1,117,944.84 = 538,203.08/x - Step 3: Cross multiply
809,766.92x = 1,117,944.84 × 538,203.08 - Step 4: Simplify right side
809,766.92x = 601,681,356,158.11 - Step 5: Solve for x
x = 601,681,356,158.11/809,766.92 - Step 6: Final answer
x = 743,030.30
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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.