Finding the Fourth Proportional to 2,143,982.95, 2,958,702.26 and 1,177,175.86
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Solution
The fourth proportional to 2,143,982.95, 2,958,702.26 and 1,177,175.86 is: 1,624,505.86
Step by Step Solution
- Step 1: Write the proportion equation
2,143,982.95 : 2,958,702.26 = 1,177,175.86 : x - Step 2: Convert to fraction form
2,143,982.95/2,958,702.26 = 1,177,175.86/x - Step 3: Cross multiply
2,143,982.95x = 2,958,702.26 × 1,177,175.86 - Step 4: Simplify right side
2,143,982.95x = 3,482,912,864,116.81 - Step 5: Solve for x
x = 3,482,912,864,116.81/2,143,982.95 - Step 6: Final answer
x = 1,624,505.86
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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.