Finding the Fourth Proportional to 852,688.68, 1,176,728.20 and 465,520.43
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Solution
The fourth proportional to 852,688.68, 1,176,728.20 and 465,520.43 is: 642,427.92
Step by Step Solution
- Step 1: Write the proportion equation
852,688.68 : 1,176,728.20 = 465,520.43 : x - Step 2: Convert to fraction form
852,688.68/1,176,728.20 = 465,520.43/x - Step 3: Cross multiply
852,688.68x = 1,176,728.20 × 465,520.43 - Step 4: Simplify right side
852,688.68x = 547,791,017,657.13 - Step 5: Solve for x
x = 547,791,017,657.13/852,688.68 - Step 6: Final answer
x = 642,427.92
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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.