Finding the Fourth Proportional to 993,694.47, 1,490,542.38 and 319,775.63
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Solution
The fourth proportional to 993,694.47, 1,490,542.38 and 319,775.63 is: 479,663.65
Step by Step Solution
- Step 1: Write the proportion equation
993,694.47 : 1,490,542.38 = 319,775.63 : x - Step 2: Convert to fraction form
993,694.47/1,490,542.38 = 319,775.63/x - Step 3: Cross multiply
993,694.47x = 1,490,542.38 × 319,775.63 - Step 4: Simplify right side
993,694.47x = 476,639,121,153.49 - Step 5: Solve for x
x = 476,639,121,153.49/993,694.47 - Step 6: Final answer
x = 479,663.65
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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.