Finding the Fourth Proportional to 3,976,438.08, 5,487,639.88 and 2,257,718.52
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Solution
The fourth proportional to 3,976,438.08, 5,487,639.88 and 2,257,718.52 is: 3,115,739.75
Step by Step Solution
- Step 1: Write the proportion equation
3,976,438.08 : 5,487,639.88 = 2,257,718.52 : x - Step 2: Convert to fraction form
3,976,438.08/5,487,639.88 = 2,257,718.52/x - Step 3: Cross multiply
3,976,438.08x = 5,487,639.88 × 2,257,718.52 - Step 4: Simplify right side
3,976,438.08x = 12,389,546,188,166.58 - Step 5: Solve for x
x = 12,389,546,188,166.58/3,976,438.08 - Step 6: Final answer
x = 3,115,739.75
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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.