Finding the Fourth Proportional to 497,473.38, 686,623.77 and 316,149.75
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Solution
The fourth proportional to 497,473.38, 686,623.77 and 316,149.75 is: 436,356.88
Step by Step Solution
- Step 1: Write the proportion equation
497,473.38 : 686,623.77 = 316,149.75 : x - Step 2: Convert to fraction form
497,473.38/686,623.77 = 316,149.75/x - Step 3: Cross multiply
497,473.38x = 686,623.77 × 316,149.75 - Step 4: Simplify right side
497,473.38x = 217,075,933,229.56 - Step 5: Solve for x
x = 217,075,933,229.56/497,473.38 - Step 6: Final answer
x = 436,356.88
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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.