Finding the Fourth Proportional to 1,256,403.28, 1,879,849.12 and 744,343.32
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Solution
The fourth proportional to 1,256,403.28, 1,879,849.12 and 744,343.32 is: 1,113,697.45
Step by Step Solution
- Step 1: Write the proportion equation
1,256,403.28 : 1,879,849.12 = 744,343.32 : x - Step 2: Convert to fraction form
1,256,403.28/1,879,849.12 = 744,343.32/x - Step 3: Cross multiply
1,256,403.28x = 1,879,849.12 × 744,343.32 - Step 4: Simplify right side
1,256,403.28x = 1,399,253,135,079.88 - Step 5: Solve for x
x = 1,399,253,135,079.88/1,256,403.28 - Step 6: Final answer
x = 1,113,697.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.