Finding the Fourth Proportional to 645,845.80, 968,423.10 and 271,445.80
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Solution
The fourth proportional to 645,845.80, 968,423.10 and 271,445.80 is: 407,023.45
Step by Step Solution
- Step 1: Write the proportion equation
645,845.80 : 968,423.10 = 271,445.80 : x - Step 2: Convert to fraction form
645,845.80/968,423.10 = 271,445.80/x - Step 3: Cross multiply
645,845.80x = 968,423.10 × 271,445.80 - Step 4: Simplify right side
645,845.80x = 262,874,383,117.98 - Step 5: Solve for x
x = 262,874,383,117.98/645,845.80 - Step 6: Final answer
x = 407,023.45
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1.5x scale
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.