Finding the Fourth Proportional to 775,711.08, 1,070,350.81 and 431,501.58
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Solution
The fourth proportional to 775,711.08, 1,070,350.81 and 431,501.58 is: 595,399.60
Step by Step Solution
- Step 1: Write the proportion equation
775,711.08 : 1,070,350.81 = 431,501.58 : x - Step 2: Convert to fraction form
775,711.08/1,070,350.81 = 431,501.58/x - Step 3: Cross multiply
775,711.08x = 1,070,350.81 × 431,501.58 - Step 4: Simplify right side
775,711.08x = 461,858,064,590.53 - Step 5: Solve for x
x = 461,858,064,590.53/775,711.08 - Step 6: Final answer
x = 595,399.60
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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.