Finding the Fourth Proportional to 3,213,812.48, 4,820,747.04 and 817,660.16
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Solution
The fourth proportional to 3,213,812.48, 4,820,747.04 and 817,660.16 is: 1,226,497.45
Step by Step Solution
- Step 1: Write the proportion equation
3,213,812.48 : 4,820,747.04 = 817,660.16 : x - Step 2: Convert to fraction form
3,213,812.48/4,820,747.04 = 817,660.16/x - Step 3: Cross multiply
3,213,812.48x = 4,820,747.04 × 817,660.16 - Step 4: Simplify right side
3,213,812.48x = 3,941,732,796,045.93 - Step 5: Solve for x
x = 3,941,732,796,045.93/3,213,812.48 - Step 6: Final answer
x = 1,226,497.45
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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.