Finding the Fourth Proportional to 823,939.80, 1,235,909.70 and 805,507.80
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Solution
The fourth proportional to 823,939.80, 1,235,909.70 and 805,507.80 is: 1,208,261.70
Step by Step Solution
- Step 1: Write the proportion equation
823,939.80 : 1,235,909.70 = 805,507.80 : x - Step 2: Convert to fraction form
823,939.80/1,235,909.70 = 805,507.80/x - Step 3: Cross multiply
823,939.80x = 1,235,909.70 × 805,507.80 - Step 4: Simplify right side
823,939.80x = 995,534,903,445.66 - Step 5: Solve for x
x = 995,534,903,445.66/823,939.80 - Step 6: Final answer
x = 1,208,261.70
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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.