Finding the Fourth Proportional to 354,587.10, 488,723.67 and 277,604.70
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Solution
The fourth proportional to 354,587.10, 488,723.67 and 277,604.70 is: 382,619.64
Step by Step Solution
- Step 1: Write the proportion equation
354,587.10 : 488,723.67 = 277,604.70 : x - Step 2: Convert to fraction form
354,587.10/488,723.67 = 277,604.70/x - Step 3: Cross multiply
354,587.10x = 488,723.67 × 277,604.70 - Step 4: Simplify right side
354,587.10x = 135,671,987,793.25 - Step 5: Solve for x
x = 135,671,987,793.25/354,587.10 - Step 6: Final answer
x = 382,619.64
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1.5x scale
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.