Finding the Fourth Proportional to 1,292,470.28, 1,938,557.10 and 345,914.84
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Solution
The fourth proportional to 1,292,470.28, 1,938,557.10 and 345,914.84 is: 518,832.56
Step by Step Solution
- Step 1: Write the proportion equation
1,292,470.28 : 1,938,557.10 = 345,914.84 : x - Step 2: Convert to fraction form
1,292,470.28/1,938,557.10 = 345,914.84/x - Step 3: Cross multiply
1,292,470.28x = 1,938,557.10 × 345,914.84 - Step 4: Simplify right side
1,292,470.28x = 670,575,669,077.36 - Step 5: Solve for x
x = 670,575,669,077.36/1,292,470.28 - Step 6: Final answer
x = 518,832.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.