Finding the Fourth Proportional to 715,291.62, 987,975.69 and 534,803.97
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Solution
The fourth proportional to 715,291.62, 987,975.69 and 534,803.97 is: 738,682.39
Step by Step Solution
- Step 1: Write the proportion equation
715,291.62 : 987,975.69 = 534,803.97 : x - Step 2: Convert to fraction form
715,291.62/987,975.69 = 534,803.97/x - Step 3: Cross multiply
715,291.62x = 987,975.69 × 534,803.97 - Step 4: Simplify right side
715,291.62x = 528,373,321,275.49 - Step 5: Solve for x
x = 528,373,321,275.49/715,291.62 - Step 6: Final answer
x = 738,682.39
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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.