Finding the Fourth Proportional to 2,984,745.20, 4,477,117.80 and 2,807,598.20
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Solution
The fourth proportional to 2,984,745.20, 4,477,117.80 and 2,807,598.20 is: 4,211,397.30
Step by Step Solution
- Step 1: Write the proportion equation
2,984,745.20 : 4,477,117.80 = 2,807,598.20 : x - Step 2: Convert to fraction form
2,984,745.20/4,477,117.80 = 2,807,598.20/x - Step 3: Cross multiply
2,984,745.20x = 4,477,117.80 × 2,807,598.20 - Step 4: Simplify right side
2,984,745.20x = 12,569,947,876,467.96 - Step 5: Solve for x
x = 12,569,947,876,467.96/2,984,745.20 - Step 6: Final answer
x = 4,211,397.30
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1.5x scale
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.