Finding the Fourth Proportional to 538,986.80, 808,366.80 and 272,496.80
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Solution
The fourth proportional to 538,986.80, 808,366.80 and 272,496.80 is: 408,687.87
Step by Step Solution
- Step 1: Write the proportion equation
538,986.80 : 808,366.80 = 272,496.80 : x - Step 2: Convert to fraction form
538,986.80/808,366.80 = 272,496.80/x - Step 3: Cross multiply
538,986.80x = 808,366.80 × 272,496.80 - Step 4: Simplify right side
538,986.80x = 220,277,366,226.24 - Step 5: Solve for x
x = 220,277,366,226.24/538,986.80 - Step 6: Final answer
x = 408,687.87
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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.