Finding the Fourth Proportional to 811,728.43, 1,120,108.96 and 549,550.42
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Solution
The fourth proportional to 811,728.43, 1,120,108.96 and 549,550.42 is: 758,327.94
Step by Step Solution
- Step 1: Write the proportion equation
811,728.43 : 1,120,108.96 = 549,550.42 : x - Step 2: Convert to fraction form
811,728.43/1,120,108.96 = 549,550.42/x - Step 3: Cross multiply
811,728.43x = 1,120,108.96 × 549,550.42 - Step 4: Simplify right side
811,728.43x = 615,556,347,851.77 - Step 5: Solve for x
x = 615,556,347,851.77/811,728.43 - Step 6: Final answer
x = 758,327.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.