Finding the Fourth Proportional to 1,330,451.20, 1,995,676.80 and 572,655.70
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Solution
The fourth proportional to 1,330,451.20, 1,995,676.80 and 572,655.70 is: 858,983.55
Step by Step Solution
- Step 1: Write the proportion equation
1,330,451.20 : 1,995,676.80 = 572,655.70 : x - Step 2: Convert to fraction form
1,330,451.20/1,995,676.80 = 572,655.70/x - Step 3: Cross multiply
1,330,451.20x = 1,995,676.80 × 572,655.70 - Step 4: Simplify right side
1,330,451.20x = 1,142,835,694,877.76 - Step 5: Solve for x
x = 1,142,835,694,877.76/1,330,451.20 - Step 6: Final answer
x = 858,983.55
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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.