Finding the Fourth Proportional to 715,517.70, 1,073,276.55 and 517,229.70
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Solution
The fourth proportional to 715,517.70, 1,073,276.55 and 517,229.70 is: 775,844.55
Step by Step Solution
- Step 1: Write the proportion equation
715,517.70 : 1,073,276.55 = 517,229.70 : x - Step 2: Convert to fraction form
715,517.70/1,073,276.55 = 517,229.70/x - Step 3: Cross multiply
715,517.70x = 1,073,276.55 × 517,229.70 - Step 4: Simplify right side
715,517.70x = 555,130,507,973.54 - Step 5: Solve for x
x = 555,130,507,973.54/715,517.70 - Step 6: Final answer
x = 775,844.55
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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.