Finding the Fourth Proportional to 777,779.70, 1,165,747.95 and 328,499.70
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Solution
The fourth proportional to 777,779.70, 1,165,747.95 and 328,499.70 is: 492,360.31
Step by Step Solution
- Step 1: Write the proportion equation
777,779.70 : 1,165,747.95 = 328,499.70 : x - Step 2: Convert to fraction form
777,779.70/1,165,747.95 = 328,499.70/x - Step 3: Cross multiply
777,779.70x = 1,165,747.95 × 328,499.70 - Step 4: Simplify right side
777,779.70x = 382,947,851,850.62 - Step 5: Solve for x
x = 382,947,851,850.62/777,779.70 - Step 6: Final answer
x = 492,360.31
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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.