Finding the Fourth Proportional to 539,108.38, 806,979.80 and 397,113.76
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Solution
The fourth proportional to 539,108.38, 806,979.80 and 397,113.76 is: 594,431.09
Step by Step Solution
- Step 1: Write the proportion equation
539,108.38 : 806,979.80 = 397,113.76 : x - Step 2: Convert to fraction form
539,108.38/806,979.80 = 397,113.76/x - Step 3: Cross multiply
539,108.38x = 806,979.80 × 397,113.76 - Step 4: Simplify right side
539,108.38x = 320,462,782,622.05 - Step 5: Solve for x
x = 320,462,782,622.05/539,108.38 - Step 6: Final answer
x = 594,431.09
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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.