Finding the Fourth Proportional to 492,131.16, 679,115.88 and 277,283.93
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Solution
The fourth proportional to 492,131.16, 679,115.88 and 277,283.93 is: 382,637.66
Step by Step Solution
- Step 1: Write the proportion equation
492,131.16 : 679,115.88 = 277,283.93 : x - Step 2: Convert to fraction form
492,131.16/679,115.88 = 277,283.93/x - Step 3: Cross multiply
492,131.16x = 679,115.88 × 277,283.93 - Step 4: Simplify right side
492,131.16x = 188,307,916,736.23 - Step 5: Solve for x
x = 188,307,916,736.23/492,131.16 - Step 6: Final answer
x = 382,637.66
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1.5x scale
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.