Finding the Fourth Proportional to 715,412.26, 986,282.42 and 570,709.18
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Solution
The fourth proportional to 715,412.26, 986,282.42 and 570,709.18 is: 786,791.70
Step by Step Solution
- Step 1: Write the proportion equation
715,412.26 : 986,282.42 = 570,709.18 : x - Step 2: Convert to fraction form
715,412.26/986,282.42 = 570,709.18/x - Step 3: Cross multiply
715,412.26x = 986,282.42 × 570,709.18 - Step 4: Simplify right side
715,412.26x = 562,880,431,166.62 - Step 5: Solve for x
x = 562,880,431,166.62/715,412.26 - Step 6: Final answer
x = 786,791.70
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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.