Finding the Fourth Proportional to 669.77, 924.41 and 374.99
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Solution
The fourth proportional to 669.77, 924.41 and 374.99 is: 517.55
Step by Step Solution
- Step 1: Write the proportion equation
669.77 : 924.41 = 374.99 : x - Step 2: Convert to fraction form
669.77/924.41 = 374.99/x - Step 3: Cross multiply
669.77x = 924.41 × 374.99 - Step 4: Simplify right side
669.77x = 346,638.01 - Step 5: Solve for x
x = 346,638.01/669.77 - Step 6: Final answer
x = 517.55
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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.