Finding the Fourth Proportional to 618,445.80, 927,779.40 and 318,845.92
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Solution
The fourth proportional to 618,445.80, 927,779.40 and 318,845.92 is: 478,325.95
Step by Step Solution
- Step 1: Write the proportion equation
618,445.80 : 927,779.40 = 318,845.92 : x - Step 2: Convert to fraction form
618,445.80/927,779.40 = 318,845.92/x - Step 3: Cross multiply
618,445.80x = 927,779.40 × 318,845.92 - Step 4: Simplify right side
618,445.80x = 295,818,676,350.05 - Step 5: Solve for x
x = 295,818,676,350.05/618,445.80 - Step 6: Final answer
x = 478,325.95
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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.