Finding the Fourth Proportional to 1,129,377.87, 1,558,544.13 and 620,113.05
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Solution
The fourth proportional to 1,129,377.87, 1,558,544.13 and 620,113.05 is: 855,757.47
Step by Step Solution
- Step 1: Write the proportion equation
1,129,377.87 : 1,558,544.13 = 620,113.05 : x - Step 2: Convert to fraction form
1,129,377.87/1,558,544.13 = 620,113.05/x - Step 3: Cross multiply
1,129,377.87x = 1,558,544.13 × 620,113.05 - Step 4: Simplify right side
1,129,377.87x = 966,473,554,013.90 - Step 5: Solve for x
x = 966,473,554,013.90/1,129,377.87 - Step 6: Final answer
x = 855,757.47
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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.