Finding the Fourth Proportional to 860,472.50, 1,290,793.08 and 313,513.62
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Solution
The fourth proportional to 860,472.50, 1,290,793.08 and 313,513.62 is: 470,301.16
Step by Step Solution
- Step 1: Write the proportion equation
860,472.50 : 1,290,793.08 = 313,513.62 : x - Step 2: Convert to fraction form
860,472.50/1,290,793.08 = 313,513.62/x - Step 3: Cross multiply
860,472.50x = 1,290,793.08 × 313,513.62 - Step 4: Simplify right side
860,472.50x = 404,681,211,181.75 - Step 5: Solve for x
x = 404,681,211,181.75/860,472.50 - Step 6: Final answer
x = 470,301.16
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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.