Finding the Fourth Proportional to 1,299,638.24, 1,949,457.60 and 353,148.80
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Solution
The fourth proportional to 1,299,638.24, 1,949,457.60 and 353,148.80 is: 529,723.27
Step by Step Solution
- Step 1: Write the proportion equation
1,299,638.24 : 1,949,457.60 = 353,148.80 : x - Step 2: Convert to fraction form
1,299,638.24/1,949,457.60 = 353,148.80/x - Step 3: Cross multiply
1,299,638.24x = 1,949,457.60 × 353,148.80 - Step 4: Simplify right side
1,299,638.24x = 688,448,612,090.88 - Step 5: Solve for x
x = 688,448,612,090.88/1,299,638.24 - Step 6: Final answer
x = 529,723.27
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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.