Finding the Fourth Proportional to 1,203,969.12, 1,661,243.42 and 713,848.07
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Solution
The fourth proportional to 1,203,969.12, 1,661,243.42 and 713,848.07 is: 984,971.61
Step by Step Solution
- Step 1: Write the proportion equation
1,203,969.12 : 1,661,243.42 = 713,848.07 : x - Step 2: Convert to fraction form
1,203,969.12/1,661,243.42 = 713,848.07/x - Step 3: Cross multiply
1,203,969.12x = 1,661,243.42 × 713,848.07 - Step 4: Simplify right side
1,203,969.12x = 1,185,875,413,097.23 - Step 5: Solve for x
x = 1,185,875,413,097.23/1,203,969.12 - Step 6: Final answer
x = 984,971.61
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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.