Finding the Fourth Proportional to 2,378,636.88, 3,282,520.58 and 1,290,908.19
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Solution
The fourth proportional to 2,378,636.88, 3,282,520.58 and 1,290,908.19 is: 1,781,454.22
Step by Step Solution
- Step 1: Write the proportion equation
2,378,636.88 : 3,282,520.58 = 1,290,908.19 : x - Step 2: Convert to fraction form
2,378,636.88/3,282,520.58 = 1,290,908.19/x - Step 3: Cross multiply
2,378,636.88x = 3,282,520.58 × 1,290,908.19 - Step 4: Simplify right side
2,378,636.88x = 4,237,432,700,565.55 - Step 5: Solve for x
x = 4,237,432,700,565.55/2,378,636.88 - Step 6: Final answer
x = 1,781,454.22
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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.