Finding the Fourth Proportional to 428,779.83, 591,701.25 and 237,810.99
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Solution
The fourth proportional to 428,779.83, 591,701.25 and 237,810.99 is: 328,170.89
Step by Step Solution
- Step 1: Write the proportion equation
428,779.83 : 591,701.25 = 237,810.99 : x - Step 2: Convert to fraction form
428,779.83/591,701.25 = 237,810.99/x - Step 3: Cross multiply
428,779.83x = 591,701.25 × 237,810.99 - Step 4: Simplify right side
428,779.83x = 140,713,060,046.74 - Step 5: Solve for x
x = 140,713,060,046.74/428,779.83 - Step 6: Final answer
x = 328,170.89
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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.