Finding the Fourth Proportional to 1,440,777.13, 2,162,378.09 and 720,902.86
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Solution
The fourth proportional to 1,440,777.13, 2,162,378.09 and 720,902.86 is: 1,081,960.92
Step by Step Solution
- Step 1: Write the proportion equation
1,440,777.13 : 2,162,378.09 = 720,902.86 : x - Step 2: Convert to fraction form
1,440,777.13/2,162,378.09 = 720,902.86/x - Step 3: Cross multiply
1,440,777.13x = 2,162,378.09 × 720,902.86 - Step 4: Simplify right side
1,440,777.13x = 1,558,864,545,878.65 - Step 5: Solve for x
x = 1,558,864,545,878.65/1,440,777.13 - Step 6: Final answer
x = 1,081,960.92
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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.