Finding the Fourth Proportional to 435.80, 652.08 and 430.94
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Solution
The fourth proportional to 435.80, 652.08 and 430.94 is: 644.81
Step by Step Solution
- Step 1: Write the proportion equation
435.80 : 652.08 = 430.94 : x - Step 2: Convert to fraction form
435.80/652.08 = 430.94/x - Step 3: Cross multiply
435.80x = 652.08 × 430.94 - Step 4: Simplify right side
435.80x = 281,007.36 - Step 5: Solve for x
x = 281,007.36/435.80 - Step 6: Final answer
x = 644.81
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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.