Finding the Fourth Proportional to 639,737.88, 958,556.52 and 218,784.12
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Solution
The fourth proportional to 639,737.88, 958,556.52 and 218,784.12 is: 327,816.99
Step by Step Solution
- Step 1: Write the proportion equation
639,737.88 : 958,556.52 = 218,784.12 : x - Step 2: Convert to fraction form
639,737.88/958,556.52 = 218,784.12/x - Step 3: Cross multiply
639,737.88x = 958,556.52 × 218,784.12 - Step 4: Simplify right side
639,737.88x = 209,716,944,698.46 - Step 5: Solve for x
x = 209,716,944,698.46/639,737.88 - Step 6: Final answer
x = 327,816.99
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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.