Finding the Fourth Proportional to 716,023.17, 988,137.35 and 393,757.79
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Solution
The fourth proportional to 716,023.17, 988,137.35 and 393,757.79 is: 543,399.70
Step by Step Solution
- Step 1: Write the proportion equation
716,023.17 : 988,137.35 = 393,757.79 : x - Step 2: Convert to fraction form
716,023.17/988,137.35 = 393,757.79/x - Step 3: Cross multiply
716,023.17x = 988,137.35 × 393,757.79 - Step 4: Simplify right side
716,023.17x = 389,086,772,242.98 - Step 5: Solve for x
x = 389,086,772,242.98/716,023.17 - Step 6: Final answer
x = 543,399.70
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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.