Finding the Fourth Proportional to 3,280,656.70, 4,920,985.05 and 3,081,202.30
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Solution
The fourth proportional to 3,280,656.70, 4,920,985.05 and 3,081,202.30 is: 4,621,803.45
Step by Step Solution
- Step 1: Write the proportion equation
3,280,656.70 : 4,920,985.05 = 3,081,202.30 : x - Step 2: Convert to fraction form
3,280,656.70/4,920,985.05 = 3,081,202.30/x - Step 3: Cross multiply
3,280,656.70x = 4,920,985.05 × 3,081,202.30 - Step 4: Simplify right side
3,280,656.70x = 15,162,550,454,325.61 - Step 5: Solve for x
x = 15,162,550,454,325.61/3,280,656.70 - Step 6: Final answer
x = 4,621,803.45
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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.