Finding the Fourth Proportional to 4,920,454.10, 7,380,681.15 and 1,729,183.70
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Solution
The fourth proportional to 4,920,454.10, 7,380,681.15 and 1,729,183.70 is: 2,593,775.55
Step by Step Solution
- Step 1: Write the proportion equation
4,920,454.10 : 7,380,681.15 = 1,729,183.70 : x - Step 2: Convert to fraction form
4,920,454.10/7,380,681.15 = 1,729,183.70/x - Step 3: Cross multiply
4,920,454.10x = 7,380,681.15 × 1,729,183.70 - Step 4: Simplify right side
4,920,454.10x = 12,762,553,539,477.26 - Step 5: Solve for x
x = 12,762,553,539,477.26/4,920,454.10 - Step 6: Final answer
x = 2,593,775.55
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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.