Finding the Fourth Proportional to 913,642.20, 1,260,829.12 and 494,537.88
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Solution
The fourth proportional to 913,642.20, 1,260,829.12 and 494,537.88 is: 682,463.84
Step by Step Solution
- Step 1: Write the proportion equation
913,642.20 : 1,260,829.12 = 494,537.88 : x - Step 2: Convert to fraction form
913,642.20/1,260,829.12 = 494,537.88/x - Step 3: Cross multiply
913,642.20x = 1,260,829.12 × 494,537.88 - Step 4: Simplify right side
913,642.20x = 623,527,760,047.07 - Step 5: Solve for x
x = 623,527,760,047.07/913,642.20 - Step 6: Final answer
x = 682,463.84
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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.