Finding the Fourth Proportional to 1,330,557.90, 1,995,836.85 and 620,657.70
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Solution
The fourth proportional to 1,330,557.90, 1,995,836.85 and 620,657.70 is: 930,986.55
Step by Step Solution
- Step 1: Write the proportion equation
1,330,557.90 : 1,995,836.85 = 620,657.70 : x - Step 2: Convert to fraction form
1,330,557.90/1,995,836.85 = 620,657.70/x - Step 3: Cross multiply
1,330,557.90x = 1,995,836.85 × 620,657.70 - Step 4: Simplify right side
1,330,557.90x = 1,238,731,508,896.24 - Step 5: Solve for x
x = 1,238,731,508,896.24/1,330,557.90 - Step 6: Final answer
x = 930,986.55
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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.