Finding the Fourth Proportional to 780,212.97, 1,169,987.13 and 306,566.07
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Solution
The fourth proportional to 780,212.97, 1,169,987.13 and 306,566.07 is: 459,718.53
Step by Step Solution
- Step 1: Write the proportion equation
780,212.97 : 1,169,987.13 = 306,566.07 : x - Step 2: Convert to fraction form
780,212.97/1,169,987.13 = 306,566.07/x - Step 3: Cross multiply
780,212.97x = 1,169,987.13 × 306,566.07 - Step 4: Simplify right side
780,212.97x = 358,678,356,394.68 - Step 5: Solve for x
x = 358,678,356,394.68/780,212.97 - Step 6: Final answer
x = 459,718.53
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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.