Finding the Fourth Proportional to 633.99, 951.27 and 390.99
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Solution
The fourth proportional to 633.99, 951.27 and 390.99 is: 586.66
Step by Step Solution
- Step 1: Write the proportion equation
633.99 : 951.27 = 390.99 : x - Step 2: Convert to fraction form
633.99/951.27 = 390.99/x - Step 3: Cross multiply
633.99x = 951.27 × 390.99 - Step 4: Simplify right side
633.99x = 371,937.06 - Step 5: Solve for x
x = 371,937.06/633.99 - Step 6: Final answer
x = 586.66
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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.