Finding the Fourth Proportional to 744,378.82, 1,115,913.02 and 295,415.06
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Solution
The fourth proportional to 744,378.82, 1,115,913.02 and 295,415.06 is: 442,862.55
Step by Step Solution
- Step 1: Write the proportion equation
744,378.82 : 1,115,913.02 = 295,415.06 : x - Step 2: Convert to fraction form
744,378.82/1,115,913.02 = 295,415.06/x - Step 3: Cross multiply
744,378.82x = 1,115,913.02 × 295,415.06 - Step 4: Simplify right side
744,378.82x = 329,657,504,701.44 - Step 5: Solve for x
x = 329,657,504,701.44/744,378.82 - Step 6: Final answer
x = 442,862.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.