Finding the Fourth Proportional to 717.40, 1,075.68 and 352
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Solution
The fourth proportional to 717.40, 1,075.68 and 352 is: 527.79
Step by Step Solution
- Step 1: Write the proportion equation
717.40 : 1,075.68 = 352 : x - Step 2: Convert to fraction form
717.40/1,075.68 = 352/x - Step 3: Cross multiply
717.40x = 1,075.68 × 352 - Step 4: Simplify right side
717.40x = 378,639.36 - Step 5: Solve for x
x = 378,639.36/717.40 - Step 6: Final answer
x = 527.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.