Finding the Fourth Proportional to 537,939.40, 806,909.10 and 369,977.80
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Solution
The fourth proportional to 537,939.40, 806,909.10 and 369,977.80 is: 554,966.70
Step by Step Solution
- Step 1: Write the proportion equation
537,939.40 : 806,909.10 = 369,977.80 : x - Step 2: Convert to fraction form
537,939.40/806,909.10 = 369,977.80/x - Step 3: Cross multiply
537,939.40x = 806,909.10 × 369,977.80 - Step 4: Simplify right side
537,939.40x = 298,538,453,617.98 - Step 5: Solve for x
x = 298,538,453,617.98/537,939.40 - Step 6: Final answer
x = 554,966.70
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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.