Finding the Fourth Proportional to 1,278,376.76, 1,764,108.24 and 705,409.40
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Solution
The fourth proportional to 1,278,376.76, 1,764,108.24 and 705,409.40 is: 973,436.45
Step by Step Solution
- Step 1: Write the proportion equation
1,278,376.76 : 1,764,108.24 = 705,409.40 : x - Step 2: Convert to fraction form
1,278,376.76/1,764,108.24 = 705,409.40/x - Step 3: Cross multiply
1,278,376.76x = 1,764,108.24 × 705,409.40 - Step 4: Simplify right side
1,278,376.76x = 1,244,418,535,113.46 - Step 5: Solve for x
x = 1,244,418,535,113.46/1,278,376.76 - Step 6: Final answer
x = 973,436.45
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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.