Finding the Fourth Proportional to 1,201,728.48, 1,658,567.44 and 685,479.84
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Solution
The fourth proportional to 1,201,728.48, 1,658,567.44 and 685,479.84 is: 946,066.07
Step by Step Solution
- Step 1: Write the proportion equation
1,201,728.48 : 1,658,567.44 = 685,479.84 : x - Step 2: Convert to fraction form
1,201,728.48/1,658,567.44 = 685,479.84/x - Step 3: Cross multiply
1,201,728.48x = 1,658,567.44 × 685,479.84 - Step 4: Simplify right side
1,201,728.48x = 1,136,914,543,400.41 - Step 5: Solve for x
x = 1,136,914,543,400.41/1,201,728.48 - Step 6: Final answer
x = 946,066.07
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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.