Finding the Fourth Proportional to 3,601,996.38, 4,970,753.35 and 1,970,403.31
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Solution
The fourth proportional to 3,601,996.38, 4,970,753.35 and 1,970,403.31 is: 2,719,155.66
Step by Step Solution
- Step 1: Write the proportion equation
3,601,996.38 : 4,970,753.35 = 1,970,403.31 : x - Step 2: Convert to fraction form
3,601,996.38/4,970,753.35 = 1,970,403.31/x - Step 3: Cross multiply
3,601,996.38x = 4,970,753.35 × 1,970,403.31 - Step 4: Simplify right side
3,601,996.38x = 9,794,388,854,033.59 - Step 5: Solve for x
x = 9,794,388,854,033.59/3,601,996.38 - Step 6: Final answer
x = 2,719,155.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.