Finding the Fourth Proportional to 716,697.91, 989,043.26 and 394,408.00
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Solution
The fourth proportional to 716,697.91, 989,043.26 and 394,408.00 is: 544,283.12
Step by Step Solution
- Step 1: Write the proportion equation
716,697.91 : 989,043.26 = 394,408.00 : x - Step 2: Convert to fraction form
716,697.91/989,043.26 = 394,408.00/x - Step 3: Cross multiply
716,697.91x = 989,043.26 × 394,408.00 - Step 4: Simplify right side
716,697.91x = 390,086,575,787.25 - Step 5: Solve for x
x = 390,086,575,787.25/716,697.91 - Step 6: Final answer
x = 544,283.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.