Finding the Fourth Proportional to 3,970,470.99, 5,955,707.58 and 978,654.99
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Solution
The fourth proportional to 3,970,470.99, 5,955,707.58 and 978,654.99 is: 1,467,982.75
Step by Step Solution
- Step 1: Write the proportion equation
3,970,470.99 : 5,955,707.58 = 978,654.99 : x - Step 2: Convert to fraction form
3,970,470.99/5,955,707.58 = 978,654.99/x - Step 3: Cross multiply
3,970,470.99x = 5,955,707.58 × 978,654.99 - Step 4: Simplify right side
3,970,470.99x = 5,828,582,942,147.82 - Step 5: Solve for x
x = 5,828,582,942,147.82/3,970,470.99 - Step 6: Final answer
x = 1,467,982.75
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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.