Finding the Fourth Proportional to 787,257.81, 1,086,564.11 and 493,043.94
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Solution
The fourth proportional to 787,257.81, 1,086,564.11 and 493,043.94 is: 680,493.53
Step by Step Solution
- Step 1: Write the proportion equation
787,257.81 : 1,086,564.11 = 493,043.94 : x - Step 2: Convert to fraction form
787,257.81/1,086,564.11 = 493,043.94/x - Step 3: Cross multiply
787,257.81x = 1,086,564.11 × 493,043.94 - Step 4: Simplify right side
787,257.81x = 535,723,847,391.77 - Step 5: Solve for x
x = 535,723,847,391.77/787,257.81 - Step 6: Final answer
x = 680,493.53
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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.