Finding the Fourth Proportional to 1,221,380.58, 1,683,955.32 and 872,936.82
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Solution
The fourth proportional to 1,221,380.58, 1,683,955.32 and 872,936.82 is: 1,203,545.09
Step by Step Solution
- Step 1: Write the proportion equation
1,221,380.58 : 1,683,955.32 = 872,936.82 : x - Step 2: Convert to fraction form
1,221,380.58/1,683,955.32 = 872,936.82/x - Step 3: Cross multiply
1,221,380.58x = 1,683,955.32 × 872,936.82 - Step 4: Simplify right side
1,221,380.58x = 1,469,986,602,062.88 - Step 5: Solve for x
x = 1,469,986,602,062.88/1,221,380.58 - Step 6: Final answer
x = 1,203,545.09
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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.