Finding the Fourth Proportional to 1,137,107.36, 1,569,211.52 and 620,865.74
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Solution
The fourth proportional to 1,137,107.36, 1,569,211.52 and 620,865.74 is: 856,796.56
Step by Step Solution
- Step 1: Write the proportion equation
1,137,107.36 : 1,569,211.52 = 620,865.74 : x - Step 2: Convert to fraction form
1,137,107.36/1,569,211.52 = 620,865.74/x - Step 3: Cross multiply
1,137,107.36x = 1,569,211.52 × 620,865.74 - Step 4: Simplify right side
1,137,107.36x = 974,269,672,400.03 - Step 5: Solve for x
x = 974,269,672,400.03/1,137,107.36 - Step 6: Final answer
x = 856,796.56
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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.