Finding the Fourth Proportional to 4,912,791.35, 7,368,170.67 and 1,317,702.94
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Solution
The fourth proportional to 4,912,791.35, 7,368,170.67 and 1,317,702.94 is: 1,976,281.80
Step by Step Solution
- Step 1: Write the proportion equation
4,912,791.35 : 7,368,170.67 = 1,317,702.94 : x - Step 2: Convert to fraction form
4,912,791.35/7,368,170.67 = 1,317,702.94/x - Step 3: Cross multiply
4,912,791.35x = 7,368,170.67 × 1,317,702.94 - Step 4: Simplify right side
4,912,791.35x = 9,709,060,135,860.34 - Step 5: Solve for x
x = 9,709,060,135,860.34/4,912,791.35 - Step 6: Final answer
x = 1,976,281.80
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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.