Finding the Fourth Proportional to 1,221,163.84, 1,683,259.59 and 962,619.43
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Solution
The fourth proportional to 1,221,163.84, 1,683,259.59 and 962,619.43 is: 1,326,880.42
Step by Step Solution
- Step 1: Write the proportion equation
1,221,163.84 : 1,683,259.59 = 962,619.43 : x - Step 2: Convert to fraction form
1,221,163.84/1,683,259.59 = 962,619.43/x - Step 3: Cross multiply
1,221,163.84x = 1,683,259.59 × 962,619.43 - Step 4: Simplify right side
1,221,163.84x = 1,620,338,387,067.83 - Step 5: Solve for x
x = 1,620,338,387,067.83/1,221,163.84 - Step 6: Final answer
x = 1,326,880.42
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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.