Finding the Fourth Proportional to 3,970,471.99, 5,955,709.08 and 978,655.99
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Solution
The fourth proportional to 3,970,471.99, 5,955,709.08 and 978,655.99 is: 1,467,984.25
Step by Step Solution
- Step 1: Write the proportion equation
3,970,471.99 : 5,955,709.08 = 978,655.99 : x - Step 2: Convert to fraction form
3,970,471.99/5,955,709.08 = 978,655.99/x - Step 3: Cross multiply
3,970,471.99x = 5,955,709.08 × 978,655.99 - Step 4: Simplify right side
3,970,471.99x = 5,828,590,365,839.39 - Step 5: Solve for x
x = 5,828,590,365,839.39/3,970,471.99 - Step 6: Final answer
x = 1,467,984.25
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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.