Finding the Fourth Proportional to 549,920.12, 758,887.95 and 320,613.17
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Solution
The fourth proportional to 549,920.12, 758,887.95 and 320,613.17 is: 442,445.12
Step by Step Solution
- Step 1: Write the proportion equation
549,920.12 : 758,887.95 = 320,613.17 : x - Step 2: Convert to fraction form
549,920.12/758,887.95 = 320,613.17/x - Step 3: Cross multiply
549,920.12x = 758,887.95 × 320,613.17 - Step 4: Simplify right side
549,920.12x = 243,309,468,732.16 - Step 5: Solve for x
x = 243,309,468,732.16/549,920.12 - Step 6: Final answer
x = 442,445.12
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1.5x scale
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.