Finding the Fourth Proportional to 647,468.10, 971,202.15 and 513,623.70
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Solution
The fourth proportional to 647,468.10, 971,202.15 and 513,623.70 is: 770,435.55
Step by Step Solution
- Step 1: Write the proportion equation
647,468.10 : 971,202.15 = 513,623.70 : x - Step 2: Convert to fraction form
647,468.10/971,202.15 = 513,623.70/x - Step 3: Cross multiply
647,468.10x = 971,202.15 × 513,623.70 - Step 4: Simplify right side
647,468.10x = 498,832,441,730.96 - Step 5: Solve for x
x = 498,832,441,730.96/647,468.10 - Step 6: Final answer
x = 770,435.55
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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.