Finding the Fourth Proportional to 2,625,455.70, 3,938,183.55 and 630,911.70
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Solution
The fourth proportional to 2,625,455.70, 3,938,183.55 and 630,911.70 is: 946,367.55
Step by Step Solution
- Step 1: Write the proportion equation
2,625,455.70 : 3,938,183.55 = 630,911.70 : x - Step 2: Convert to fraction form
2,625,455.70/3,938,183.55 = 630,911.70/x - Step 3: Cross multiply
2,625,455.70x = 3,938,183.55 × 630,911.70 - Step 4: Simplify right side
2,625,455.70x = 2,484,646,078,442.53 - Step 5: Solve for x
x = 2,484,646,078,442.53/2,625,455.70 - Step 6: Final answer
x = 946,367.55
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Double scale
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Similar ratio
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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.