Finding the Fourth Proportional to 768,711.18, 1,060,740.96 and 446,358.44
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Solution
The fourth proportional to 768,711.18, 1,060,740.96 and 446,358.44 is: 615,927.92
Step by Step Solution
- Step 1: Write the proportion equation
768,711.18 : 1,060,740.96 = 446,358.44 : x - Step 2: Convert to fraction form
768,711.18/1,060,740.96 = 446,358.44/x - Step 3: Cross multiply
768,711.18x = 1,060,740.96 × 446,358.44 - Step 4: Simplify right side
768,711.18x = 473,470,680,149.70 - Step 5: Solve for x
x = 473,470,680,149.70/768,711.18 - Step 6: Final answer
x = 615,927.92
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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.