Finding the Fourth Proportional to 874,695.12, 1,312,077.24 and 243,664.08
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Solution
The fourth proportional to 874,695.12, 1,312,077.24 and 243,664.08 is: 365,505.75
Step by Step Solution
- Step 1: Write the proportion equation
874,695.12 : 1,312,077.24 = 243,664.08 : x - Step 2: Convert to fraction form
874,695.12/1,312,077.24 = 243,664.08/x - Step 3: Cross multiply
874,695.12x = 1,312,077.24 × 243,664.08 - Step 4: Simplify right side
874,695.12x = 319,706,093,573.54 - Step 5: Solve for x
x = 319,706,093,573.54/874,695.12 - Step 6: Final answer
x = 365,505.75
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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.