Finding the Fourth Proportional to 638,445.12, 955,302.12 and 511,700.96
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Solution
The fourth proportional to 638,445.12, 955,302.12 and 511,700.96 is: 765,655.48
Step by Step Solution
- Step 1: Write the proportion equation
638,445.12 : 955,302.12 = 511,700.96 : x - Step 2: Convert to fraction form
638,445.12/955,302.12 = 511,700.96/x - Step 3: Cross multiply
638,445.12x = 955,302.12 × 511,700.96 - Step 4: Simplify right side
638,445.12x = 488,829,007,117.53 - Step 5: Solve for x
x = 488,829,007,117.53/638,445.12 - Step 6: Final answer
x = 765,655.48
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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.