Finding the Fourth Proportional to 1,355.68, 2,033.84 and 490
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Solution
The fourth proportional to 1,355.68, 2,033.84 and 490 is: 735.12
Step by Step Solution
- Step 1: Write the proportion equation
1,355.68 : 2,033.84 = 490 : x - Step 2: Convert to fraction form
1,355.68/2,033.84 = 490/x - Step 3: Cross multiply
1,355.68x = 2,033.84 × 490 - Step 4: Simplify right side
1,355.68x = 996,581.60 - Step 5: Solve for x
x = 996,581.60/1,355.68 - Step 6: Final answer
x = 735.12
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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.