Finding the Fourth Proportional to 1,682,479.12, 2,321,854.68 and 918,535.60
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Solution
The fourth proportional to 1,682,479.12, 2,321,854.68 and 918,535.60 is: 1,267,597.41
Step by Step Solution
- Step 1: Write the proportion equation
1,682,479.12 : 2,321,854.68 = 918,535.60 : x - Step 2: Convert to fraction form
1,682,479.12/2,321,854.68 = 918,535.60/x - Step 3: Cross multiply
1,682,479.12x = 2,321,854.68 × 918,535.60 - Step 4: Simplify right side
1,682,479.12x = 2,132,706,181,606.61 - Step 5: Solve for x
x = 2,132,706,181,606.61/1,682,479.12 - Step 6: Final answer
x = 1,267,597.41
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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.