Finding the Fourth Proportional to 3,126,876.16, 4,691,122.88 and 1,831,122.74
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Solution
The fourth proportional to 3,126,876.16, 4,691,122.88 and 1,831,122.74 is: 2,747,157.66
Step by Step Solution
- Step 1: Write the proportion equation
3,126,876.16 : 4,691,122.88 = 1,831,122.74 : x - Step 2: Convert to fraction form
3,126,876.16/4,691,122.88 = 1,831,122.74/x - Step 3: Cross multiply
3,126,876.16x = 4,691,122.88 × 1,831,122.74 - Step 4: Simplify right side
3,126,876.16x = 8,590,021,781,702.29 - Step 5: Solve for x
x = 8,590,021,781,702.29/3,126,876.16 - Step 6: Final answer
x = 2,747,157.66
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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.