Finding the Fourth Proportional to 3,630,917.80, 5,446,376.70 and 971,525.80
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Solution
The fourth proportional to 3,630,917.80, 5,446,376.70 and 971,525.80 is: 1,457,288.70
Step by Step Solution
- Step 1: Write the proportion equation
3,630,917.80 : 5,446,376.70 = 971,525.80 : x - Step 2: Convert to fraction form
3,630,917.80/5,446,376.70 = 971,525.80/x - Step 3: Cross multiply
3,630,917.80x = 5,446,376.70 × 971,525.80 - Step 4: Simplify right side
3,630,917.80x = 5,291,295,480,568.86 - Step 5: Solve for x
x = 5,291,295,480,568.86/3,630,917.80 - Step 6: Final answer
x = 1,457,288.70
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Double scale
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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.