Finding the Fourth Proportional to 516,961.17, 775,478.61 and 137,879.75
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Solution
The fourth proportional to 516,961.17, 775,478.61 and 137,879.75 is: 206,829.46
Step by Step Solution
- Step 1: Write the proportion equation
516,961.17 : 775,478.61 = 137,879.75 : x - Step 2: Convert to fraction form
516,961.17/775,478.61 = 137,879.75/x - Step 3: Cross multiply
516,961.17x = 775,478.61 × 137,879.75 - Step 4: Simplify right side
516,961.17x = 106,922,798,815.84 - Step 5: Solve for x
x = 106,922,798,815.84/516,961.17 - Step 6: Final answer
x = 206,829.46
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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.