Finding the Fourth Proportional to 1,580,490.68, 2,181,082.70 and 855,338.18
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Solution
The fourth proportional to 1,580,490.68, 2,181,082.70 and 855,338.18 is: 1,180,369.70
Step by Step Solution
- Step 1: Write the proportion equation
1,580,490.68 : 2,181,082.70 = 855,338.18 : x - Step 2: Convert to fraction form
1,580,490.68/2,181,082.70 = 855,338.18/x - Step 3: Cross multiply
1,580,490.68x = 2,181,082.70 × 855,338.18 - Step 4: Simplify right side
1,580,490.68x = 1,865,563,302,770.80 - Step 5: Solve for x
x = 1,865,563,302,770.80/1,580,490.68 - Step 6: Final answer
x = 1,180,369.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.