Finding the Fourth Proportional to 567,243.94, 782,813.05 and 312,611.53
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Solution
The fourth proportional to 567,243.94, 782,813.05 and 312,611.53 is: 431,412.95
Step by Step Solution
- Step 1: Write the proportion equation
567,243.94 : 782,813.05 = 312,611.53 : x - Step 2: Convert to fraction form
567,243.94/782,813.05 = 312,611.53/x - Step 3: Cross multiply
567,243.94x = 782,813.05 × 312,611.53 - Step 4: Simplify right side
567,243.94x = 244,716,382,525.91 - Step 5: Solve for x
x = 244,716,382,525.91/567,243.94 - Step 6: Final answer
x = 431,412.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.