Finding the Fourth Proportional to 823,901.80, 1,235,852.70 and 403,997.80
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Solution
The fourth proportional to 823,901.80, 1,235,852.70 and 403,997.80 is: 605,996.70
Step by Step Solution
- Step 1: Write the proportion equation
823,901.80 : 1,235,852.70 = 403,997.80 : x - Step 2: Convert to fraction form
823,901.80/1,235,852.70 = 403,997.80/x - Step 3: Cross multiply
823,901.80x = 1,235,852.70 × 403,997.80 - Step 4: Simplify right side
823,901.80x = 499,281,771,924.06 - Step 5: Solve for x
x = 499,281,771,924.06/823,901.80 - Step 6: Final answer
x = 605,996.70
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Similar ratio
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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.