Finding the Fourth Proportional to 2,480,438.48, 3,420,653.64 and 1,621,734.80
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Solution
The fourth proportional to 2,480,438.48, 3,420,653.64 and 1,621,734.80 is: 2,236,456.62
Step by Step Solution
- Step 1: Write the proportion equation
2,480,438.48 : 3,420,653.64 = 1,621,734.80 : x - Step 2: Convert to fraction form
2,480,438.48/3,420,653.64 = 1,621,734.80/x - Step 3: Cross multiply
2,480,438.48x = 3,420,653.64 × 1,621,734.80 - Step 4: Simplify right side
2,480,438.48x = 5,547,393,046,734.67 - Step 5: Solve for x
x = 5,547,393,046,734.67/2,480,438.48 - Step 6: Final answer
x = 2,236,456.62
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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.