Finding the Fourth Proportional to 910,475.80, 1,365,713.70 and 438,083.80
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Solution
The fourth proportional to 910,475.80, 1,365,713.70 and 438,083.80 is: 657,125.70
Step by Step Solution
- Step 1: Write the proportion equation
910,475.80 : 1,365,713.70 = 438,083.80 : x - Step 2: Convert to fraction form
910,475.80/1,365,713.70 = 438,083.80/x - Step 3: Cross multiply
910,475.80x = 1,365,713.70 × 438,083.80 - Step 4: Simplify right side
910,475.80x = 598,297,047,408.06 - Step 5: Solve for x
x = 598,297,047,408.06/910,475.80 - Step 6: Final answer
x = 657,125.70
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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.