Finding the Fourth Proportional to 931,306.68, 1,395,791.87 and 398,201.94
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Solution
The fourth proportional to 931,306.68, 1,395,791.87 and 398,201.94 is: 596,803.44
Step by Step Solution
- Step 1: Write the proportion equation
931,306.68 : 1,395,791.87 = 398,201.94 : x - Step 2: Convert to fraction form
931,306.68/1,395,791.87 = 398,201.94/x - Step 3: Cross multiply
931,306.68x = 1,395,791.87 × 398,201.94 - Step 4: Simplify right side
931,306.68x = 555,807,028,479.22 - Step 5: Solve for x
x = 555,807,028,479.22/931,306.68 - Step 6: Final answer
x = 596,803.44
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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.