Finding the Fourth Proportional to 519,742.63, 717,244.82 and 281,278.63
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Solution
The fourth proportional to 519,742.63, 717,244.82 and 281,278.63 is: 388,164.50
Step by Step Solution
- Step 1: Write the proportion equation
519,742.63 : 717,244.82 = 281,278.63 : x - Step 2: Convert to fraction form
519,742.63/717,244.82 = 281,278.63/x - Step 3: Cross multiply
519,742.63x = 717,244.82 × 281,278.63 - Step 4: Simplify right side
519,742.63x = 201,745,637,461.17 - Step 5: Solve for x
x = 201,745,637,461.17/519,742.63 - Step 6: Final answer
x = 388,164.50
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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.