Finding the Fourth Proportional to 527,213.28, 727,554.15 and 285,495.79
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Solution
The fourth proportional to 527,213.28, 727,554.15 and 285,495.79 is: 393,984.09
Step by Step Solution
- Step 1: Write the proportion equation
527,213.28 : 727,554.15 = 285,495.79 : x - Step 2: Convert to fraction form
527,213.28/727,554.15 = 285,495.79/x - Step 3: Cross multiply
527,213.28x = 727,554.15 × 285,495.79 - Step 4: Simplify right side
527,213.28x = 207,713,646,367.31 - Step 5: Solve for x
x = 207,713,646,367.31/527,213.28 - Step 6: Final answer
x = 393,984.09
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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.