Finding the Fourth Proportional to 3,340,820.80, 5,011,231.20 and 2,490,515.20
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Solution
The fourth proportional to 3,340,820.80, 5,011,231.20 and 2,490,515.20 is: 3,735,772.80
Step by Step Solution
- Step 1: Write the proportion equation
3,340,820.80 : 5,011,231.20 = 2,490,515.20 : x - Step 2: Convert to fraction form
3,340,820.80/5,011,231.20 = 2,490,515.20/x - Step 3: Cross multiply
3,340,820.80x = 5,011,231.20 × 2,490,515.20 - Step 4: Simplify right side
3,340,820.80x = 12,480,547,474,314.24 - Step 5: Solve for x
x = 12,480,547,474,314.24/3,340,820.80 - Step 6: Final answer
x = 3,735,772.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.