Finding the Fourth Proportional to 853.32, 1,278.74 and 462.99
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Solution
The fourth proportional to 853.32, 1,278.74 and 462.99 is: 693.81
Step by Step Solution
- Step 1: Write the proportion equation
853.32 : 1,278.74 = 462.99 : x - Step 2: Convert to fraction form
853.32/1,278.74 = 462.99/x - Step 3: Cross multiply
853.32x = 1,278.74 × 462.99 - Step 4: Simplify right side
853.32x = 592,044.99 - Step 5: Solve for x
x = 592,044.99/853.32 - Step 6: Final answer
x = 693.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.