Finding the Fourth Proportional to 4,762,221.12, 7,143,312.24 and 1,729,581.12
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Solution
The fourth proportional to 4,762,221.12, 7,143,312.24 and 1,729,581.12 is: 2,594,364.62
Step by Step Solution
- Step 1: Write the proportion equation
4,762,221.12 : 7,143,312.24 = 1,729,581.12 : x - Step 2: Convert to fraction form
4,762,221.12/7,143,312.24 = 1,729,581.12/x - Step 3: Cross multiply
4,762,221.12x = 7,143,312.24 × 1,729,581.12 - Step 4: Simplify right side
4,762,221.12x = 12,354,937,984,568.91 - Step 5: Solve for x
x = 12,354,937,984,568.91/4,762,221.12 - Step 6: Final answer
x = 2,594,364.62
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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.