Finding the Fourth Proportional to 431,655.41, 595,415.39 and 278,634.66
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Solution
The fourth proportional to 431,655.41, 595,415.39 and 278,634.66 is: 384,342.14
Step by Step Solution
- Step 1: Write the proportion equation
431,655.41 : 595,415.39 = 278,634.66 : x - Step 2: Convert to fraction form
431,655.41/595,415.39 = 278,634.66/x - Step 3: Cross multiply
431,655.41x = 595,415.39 × 278,634.66 - Step 4: Simplify right side
431,655.41x = 165,903,363,358.24 - Step 5: Solve for x
x = 165,903,363,358.24/431,655.41 - Step 6: Final answer
x = 384,342.14
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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.