Finding the Fourth Proportional to 668,514.21, 922,251.06 and 396,593.70
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Solution
The fourth proportional to 668,514.21, 922,251.06 and 396,593.70 is: 547,122.19
Step by Step Solution
- Step 1: Write the proportion equation
668,514.21 : 922,251.06 = 396,593.70 : x - Step 2: Convert to fraction form
668,514.21/922,251.06 = 396,593.70/x - Step 3: Cross multiply
668,514.21x = 922,251.06 × 396,593.70 - Step 4: Simplify right side
668,514.21x = 365,758,960,214.32 - Step 5: Solve for x
x = 365,758,960,214.32/668,514.21 - Step 6: Final answer
x = 547,122.19
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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.