Finding the Fourth Proportional to 1,153,900.26, 1,592,378.42 and 637,639.74
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Solution
The fourth proportional to 1,153,900.26, 1,592,378.42 and 637,639.74 is: 879,940.66
Step by Step Solution
- Step 1: Write the proportion equation
1,153,900.26 : 1,592,378.42 = 637,639.74 : x - Step 2: Convert to fraction form
1,153,900.26/1,592,378.42 = 637,639.74/x - Step 3: Cross multiply
1,153,900.26x = 1,592,378.42 × 637,639.74 - Step 4: Simplify right side
1,153,900.26x = 1,015,363,761,710.41 - Step 5: Solve for x
x = 1,015,363,761,710.41/1,153,900.26 - Step 6: Final answer
x = 879,940.66
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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.