Finding the Fourth Proportional to 620,134.68, 855,879.42 and 378,557.88
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Solution
The fourth proportional to 620,134.68, 855,879.42 and 378,557.88 is: 522,466.99
Step by Step Solution
- Step 1: Write the proportion equation
620,134.68 : 855,879.42 = 378,557.88 : x - Step 2: Convert to fraction form
620,134.68/855,879.42 = 378,557.88/x - Step 3: Cross multiply
620,134.68x = 855,879.42 × 378,557.88 - Step 4: Simplify right side
620,134.68x = 323,999,898,770.83 - Step 5: Solve for x
x = 323,999,898,770.83/620,134.68 - Step 6: Final answer
x = 522,466.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.