Finding the Fourth Proportional to 710.75, 980.93 and 430.99
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Solution
The fourth proportional to 710.75, 980.93 and 430.99 is: 594.82
Step by Step Solution
- Step 1: Write the proportion equation
710.75 : 980.93 = 430.99 : x - Step 2: Convert to fraction form
710.75/980.93 = 430.99/x - Step 3: Cross multiply
710.75x = 980.93 × 430.99 - Step 4: Simplify right side
710.75x = 422,766.41 - Step 5: Solve for x
x = 422,766.41/710.75 - Step 6: Final answer
x = 594.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.