Finding the Fourth Proportional to 479.99, 718.34 and 371.99
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Solution
The fourth proportional to 479.99, 718.34 and 371.99 is: 556.71
Step by Step Solution
- Step 1: Write the proportion equation
479.99 : 718.34 = 371.99 : x - Step 2: Convert to fraction form
479.99/718.34 = 371.99/x - Step 3: Cross multiply
479.99x = 718.34 × 371.99 - Step 4: Simplify right side
479.99x = 267,215.23 - Step 5: Solve for x
x = 267,215.23/479.99 - Step 6: Final answer
x = 556.71
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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.