Finding the Fourth Proportional to 4,478,638.88, 6,717,963.18 and 1,112,845.88
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Solution
The fourth proportional to 4,478,638.88, 6,717,963.18 and 1,112,845.88 is: 1,669,270.03
Step by Step Solution
- Step 1: Write the proportion equation
4,478,638.88 : 6,717,963.18 = 1,112,845.88 : x - Step 2: Convert to fraction form
4,478,638.88/6,717,963.18 = 1,112,845.88/x - Step 3: Cross multiply
4,478,638.88x = 6,717,963.18 × 1,112,845.88 - Step 4: Simplify right side
4,478,638.88x = 7,476,057,646,854.70 - Step 5: Solve for x
x = 7,476,057,646,854.70/4,478,638.88 - Step 6: Final answer
x = 1,669,270.03
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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.