Finding the Fourth Proportional to 1,551,915.81, 2,141,623.19 and 872,852.31
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Solution
The fourth proportional to 1,551,915.81, 2,141,623.19 and 872,852.31 is: 1,204,524.59
Step by Step Solution
- Step 1: Write the proportion equation
1,551,915.81 : 2,141,623.19 = 872,852.31 : x - Step 2: Convert to fraction form
1,551,915.81/2,141,623.19 = 872,852.31/x - Step 3: Cross multiply
1,551,915.81x = 2,141,623.19 × 872,852.31 - Step 4: Simplify right side
1,551,915.81x = 1,869,320,750,723.20 - Step 5: Solve for x
x = 1,869,320,750,723.20/1,551,915.81 - Step 6: Final answer
x = 1,204,524.59
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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.