Finding the Fourth Proportional to 852,856.47, 1,279,279.53 and 213,156.99
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Solution
The fourth proportional to 852,856.47, 1,279,279.53 and 213,156.99 is: 319,734.19
Step by Step Solution
- Step 1: Write the proportion equation
852,856.47 : 1,279,279.53 = 213,156.99 : x - Step 2: Convert to fraction form
852,856.47/1,279,279.53 = 213,156.99/x - Step 3: Cross multiply
852,856.47x = 1,279,279.53 × 213,156.99 - Step 4: Simplify right side
852,856.47x = 272,687,373,983.42 - Step 5: Solve for x
x = 272,687,373,983.42/852,856.47 - Step 6: Final answer
x = 319,734.19
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1.5x scale
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.