Finding the Fourth Proportional to 431,513.21, 595,384.67 and 278,519.00
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Solution
The fourth proportional to 431,513.21, 595,384.67 and 278,519.00 is: 384,289.37
Step by Step Solution
- Step 1: Write the proportion equation
431,513.21 : 595,384.67 = 278,519.00 : x - Step 2: Convert to fraction form
431,513.21/595,384.67 = 278,519.00/x - Step 3: Cross multiply
431,513.21x = 595,384.67 × 278,519.00 - Step 4: Simplify right side
431,513.21x = 165,825,938,534.21 - Step 5: Solve for x
x = 165,825,938,534.21/431,513.21 - Step 6: Final answer
x = 384,289.37
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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.