Finding the Fourth Proportional to 820,203.70, 1,230,305.55 and 465,909.70
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Solution
The fourth proportional to 820,203.70, 1,230,305.55 and 465,909.70 is: 698,864.55
Step by Step Solution
- Step 1: Write the proportion equation
820,203.70 : 1,230,305.55 = 465,909.70 : x - Step 2: Convert to fraction form
820,203.70/1,230,305.55 = 465,909.70/x - Step 3: Cross multiply
820,203.70x = 1,230,305.55 × 465,909.70 - Step 4: Simplify right side
820,203.70x = 573,211,289,708.84 - Step 5: Solve for x
x = 573,211,289,708.84/820,203.70 - Step 6: Final answer
x = 698,864.55
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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.