Finding the Fourth Proportional to 1,394,209.92, 1,922,924.99 and 1,008,472.33
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Solution
The fourth proportional to 1,394,209.92, 1,922,924.99 and 1,008,472.33 is: 1,390,907.22
Step by Step Solution
- Step 1: Write the proportion equation
1,394,209.92 : 1,922,924.99 = 1,008,472.33 : x - Step 2: Convert to fraction form
1,394,209.92/1,922,924.99 = 1,008,472.33/x - Step 3: Cross multiply
1,394,209.92x = 1,922,924.99 × 1,008,472.33 - Step 4: Simplify right side
1,394,209.92x = 1,939,216,636,352.58 - Step 5: Solve for x
x = 1,939,216,636,352.58/1,394,209.92 - Step 6: Final answer
x = 1,390,907.22
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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.