Finding the Fourth Proportional to 572.91, 790.67 and 339.99
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Solution
The fourth proportional to 572.91, 790.67 and 339.99 is: 469.22
Step by Step Solution
- Step 1: Write the proportion equation
572.91 : 790.67 = 339.99 : x - Step 2: Convert to fraction form
572.91/790.67 = 339.99/x - Step 3: Cross multiply
572.91x = 790.67 × 339.99 - Step 4: Simplify right side
572.91x = 268,818.19 - Step 5: Solve for x
x = 268,818.19/572.91 - Step 6: Final answer
x = 469.22
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.