Finding the Fourth Proportional to 880,356.28, 1,320,534.42 and 480,779.05
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Solution
The fourth proportional to 880,356.28, 1,320,534.42 and 480,779.05 is: 721,168.58
Step by Step Solution
- Step 1: Write the proportion equation
880,356.28 : 1,320,534.42 = 480,779.05 : x - Step 2: Convert to fraction form
880,356.28/1,320,534.42 = 480,779.05/x - Step 3: Cross multiply
880,356.28x = 1,320,534.42 × 480,779.05 - Step 4: Simplify right side
880,356.28x = 634,885,283,939.90 - Step 5: Solve for x
x = 634,885,283,939.90/880,356.28 - Step 6: Final answer
x = 721,168.58
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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.