Finding the Fourth Proportional to 4,518,779.60, 6,772,920.60 and 1,821,771.20
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Solution
The fourth proportional to 4,518,779.60, 6,772,920.60 and 1,821,771.20 is: 2,730,540.72
Step by Step Solution
- Step 1: Write the proportion equation
4,518,779.60 : 6,772,920.60 = 1,821,771.20 : x - Step 2: Convert to fraction form
4,518,779.60/6,772,920.60 = 1,821,771.20/x - Step 3: Cross multiply
4,518,779.60x = 6,772,920.60 × 1,821,771.20 - Step 4: Simplify right side
4,518,779.60x = 12,338,711,688,966.72 - Step 5: Solve for x
x = 12,338,711,688,966.72/4,518,779.60 - Step 6: Final answer
x = 2,730,540.72
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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.