Finding the Fourth Proportional to 716,024.37, 988,079.79 and 393,748.05
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Solution
The fourth proportional to 716,024.37, 988,079.79 and 393,748.05 is: 543,353.70
Step by Step Solution
- Step 1: Write the proportion equation
716,024.37 : 988,079.79 = 393,748.05 : x - Step 2: Convert to fraction form
716,024.37/988,079.79 = 393,748.05/x - Step 3: Cross multiply
716,024.37x = 988,079.79 × 393,748.05 - Step 4: Simplify right side
716,024.37x = 389,054,490,556.91 - Step 5: Solve for x
x = 389,054,490,556.91/716,024.37 - Step 6: Final answer
x = 543,353.70
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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.