Finding the Fourth Proportional to 1,068.68, 1,602 and 451.70
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Solution
The fourth proportional to 1,068.68, 1,602 and 451.70 is: 677.12
Step by Step Solution
- Step 1: Write the proportion equation
1,068.68 : 1,602 = 451.70 : x - Step 2: Convert to fraction form
1,068.68/1,602 = 451.70/x - Step 3: Cross multiply
1,068.68x = 1,602 × 451.70 - Step 4: Simplify right side
1,068.68x = 723,623.40 - Step 5: Solve for x
x = 723,623.40/1,068.68 - Step 6: Final answer
x = 677.12
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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.