Finding the Fourth Proportional to 836.47, 1,255 and 559.93
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Solution
The fourth proportional to 836.47, 1,255 and 559.93 is: 840.09
Step by Step Solution
- Step 1: Write the proportion equation
836.47 : 1,255 = 559.93 : x - Step 2: Convert to fraction form
836.47/1,255 = 559.93/x - Step 3: Cross multiply
836.47x = 1,255 × 559.93 - Step 4: Simplify right side
836.47x = 702,712.15 - Step 5: Solve for x
x = 702,712.15/836.47 - Step 6: Final answer
x = 840.09
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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.