Finding the Fourth Proportional to 548,720.79, 757,264.14 and 306,988.98
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Solution
The fourth proportional to 548,720.79, 757,264.14 and 306,988.98 is: 423,661.27
Step by Step Solution
- Step 1: Write the proportion equation
548,720.79 : 757,264.14 = 306,988.98 : x - Step 2: Convert to fraction form
548,720.79/757,264.14 = 306,988.98/x - Step 3: Cross multiply
548,720.79x = 757,264.14 × 306,988.98 - Step 4: Simplify right side
548,720.79x = 232,471,745,929.18 - Step 5: Solve for x
x = 232,471,745,929.18/548,720.79 - Step 6: Final answer
x = 423,661.27
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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.