Finding the Fourth Proportional to 578,302.36, 867,237.78 and 199,115.96
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Solution
The fourth proportional to 578,302.36, 867,237.78 and 199,115.96 is: 298,599.65
Step by Step Solution
- Step 1: Write the proportion equation
578,302.36 : 867,237.78 = 199,115.96 : x - Step 2: Convert to fraction form
578,302.36/867,237.78 = 199,115.96/x - Step 3: Cross multiply
578,302.36x = 867,237.78 × 199,115.96 - Step 4: Simplify right side
578,302.36x = 172,680,883,112.97 - Step 5: Solve for x
x = 172,680,883,112.97/578,302.36 - Step 6: Final answer
x = 298,599.65
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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.